Console.WriteLine 方法

定義

命名空間:: System

組件:: netstandard.dll, System.Console.dll

組件:: System.Console.dll

組件:: mscorlib.dll

組件:: netstandard.dll

重要

部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。

將指定的數據，後面接著目前的行終止符寫入標準輸出數據流。

多載

名稱	Description
WriteLine(String, Object, Object)	使用指定的格式資訊，將指定物件的文字表示，後面接著目前的行終止符寫入標準輸出數據流。
WriteLine(String)	將指定的字串值，後面接著目前的行終止符寫入標準輸出數據流。
WriteLine(Char[], Int32, Int32)	將 Unicode 字元的指定子陣列，後面接著目前的行終止符寫入標準輸出數據流。
WriteLine(String, ReadOnlySpan<Object>)	使用指定的格式資訊，將指定之物件範圍的文字表示，後面接著目前的行終止符寫入標準輸出數據流。
WriteLine(String, Object[])	使用指定的格式資訊，將指定之物件數位的文字表示，後面接著目前的行終止符寫入標準輸出數據流。
WriteLine(String, Object)	使用指定的格式資訊，將指定物件的文字表示，後面接著目前的行終止符寫入標準輸出數據流。
WriteLine(UInt64)	將指定之 64 位無符號整數值的文字表示，後面接著目前的行終止符寫入標準輸出數據流。
WriteLine(UInt32)	將指定之 32 位無符號整數值的文字表示，後面接著目前的行終止符寫入標準輸出數據流。
WriteLine(Single)	將指定之單精度浮點值的文字表示，後面接著目前的行終止符寫入標準輸出數據流。
WriteLine(Double)	將指定之雙精確度浮點值的文字表示，後面接著目前的行終止符寫入標準輸出數據流。
WriteLine(Object)	將指定物件的文字表示，後面接著目前的行終止符寫入標準輸出數據流。
WriteLine(Int64)	將指定之64位帶正負號整數值的文字表示，後面接著目前的行終止符寫入標準輸出數據流。
WriteLine(Int32)	將指定之 32 位帶正負號整數值的文字表示，後面接著目前的行終止符寫入標準輸出數據流。
WriteLine(Decimal)	將指定 Decimal 值的文字表示，接著是當前的線路終止符，寫入標準輸出串流。
WriteLine(Char[])	將指定的 Unicode 字元陣列，後面接著目前的行終止符寫入標準輸出數據流。
WriteLine(Char)	將指定的 Unicode 字元，後面接著目前的行終止符，值寫入標準輸出數據流。
WriteLine(Boolean)	將指定布爾值的文字表示，後面接著目前的行終止符寫入標準輸出數據流。
WriteLine()	將目前的行終止符寫入標準輸出數據流。
WriteLine(String, Object, Object, Object)	使用指定的格式資訊，將指定物件的文字表示，後面接著目前的行終止符寫入標準輸出數據流。
WriteLine(ReadOnlySpan<Char>)
WriteLine(String, Object, Object, Object, Object)	使用指定的格式資訊，將指定物件和可變長度參數清單的文字表示，後面接著目前的行終止符寫入標準輸出數據流。

備註

預設的行尾是一個字串，其值為回車符後接換行碼（C# 中稱為「\r\n」，Visual vbCrLf Basic 中則為「」）。你可以透過將該屬性的屬性Out設定TextWriter.NewLine成另一串來改變線條終端器。

WriteLine(String, Object, Object)

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

使用指定的格式資訊，將指定物件的文字表示，後面接著目前的行終止符寫入標準輸出數據流。

public:
 static void WriteLine(System::String ^ format, System::Object ^ arg0, System::Object ^ arg1);

public static void WriteLine(string format, object? arg0, object? arg1);

public static void WriteLine(string format, object arg0, object arg1);

static member WriteLine : string * obj * obj -> unit

Public Shared Sub WriteLine (format As String, arg0 As Object, arg1 As Object)

參數

format: String

複合格式字串。

arg0: Object

第一個用寫入 format的物件。

arg1: Object

第二個用的物件是用 format。

例外狀況

IOException

發生 I/O 錯誤。

ArgumentNullException

format 為 null。

FormatException

格式規範在中 format 是無效的。

範例

下列範例示範數位、日期和列舉的標準格式規範。

// This code example demonstrates the Console.WriteLine() method.
// Formatting for this example uses the "en-US" culture.

using System;
class Sample
{
    enum Color {Yellow = 1, Blue, Green};
    static DateTime thisDate = DateTime.Now;

    public static void Main()
    {
        Console.Clear();

        // Format a negative integer or floating-point number in various ways.
        Console.WriteLine("Standard Numeric Format Specifiers");
        Console.WriteLine(
            "(C) Currency: . . . . . . . . {0:C}\n" +
            "(D) Decimal:. . . . . . . . . {0:D}\n" +
            "(E) Scientific: . . . . . . . {1:E}\n" +
            "(F) Fixed point:. . . . . . . {1:F}\n" +
            "(G) General:. . . . . . . . . {0:G}\n" +
            "    (default):. . . . . . . . {0} (default = 'G')\n" +
            "(N) Number: . . . . . . . . . {0:N}\n" +
            "(P) Percent:. . . . . . . . . {1:P}\n" +
            "(R) Round-trip: . . . . . . . {1:R}\n" +
            "(X) Hexadecimal:. . . . . . . {0:X}\n",
            -123, -123.45f);

        // Format the current date in various ways.
        Console.WriteLine("Standard DateTime Format Specifiers");
        Console.WriteLine(
            "(d) Short date: . . . . . . . {0:d}\n" +
            "(D) Long date:. . . . . . . . {0:D}\n" +
            "(t) Short time: . . . . . . . {0:t}\n" +
            "(T) Long time:. . . . . . . . {0:T}\n" +
            "(f) Full date/short time: . . {0:f}\n" +
            "(F) Full date/long time:. . . {0:F}\n" +
            "(g) General date/short time:. {0:g}\n" +
            "(G) General date/long time: . {0:G}\n" +
            "    (default):. . . . . . . . {0} (default = 'G')\n" +
            "(M) Month:. . . . . . . . . . {0:M}\n" +
            "(R) RFC1123:. . . . . . . . . {0:R}\n" +
            "(s) Sortable: . . . . . . . . {0:s}\n" +
            "(u) Universal sortable: . . . {0:u} (invariant)\n" +
            "(U) Universal full date/time: {0:U}\n" +
            "(Y) Year: . . . . . . . . . . {0:Y}\n",
            thisDate);

        // Format a Color enumeration value in various ways.
        Console.WriteLine("Standard Enumeration Format Specifiers");
        Console.WriteLine(
            "(G) General:. . . . . . . . . {0:G}\n" +
            "    (default):. . . . . . . . {0} (default = 'G')\n" +
            "(F) Flags:. . . . . . . . . . {0:F} (flags or integer)\n" +
            "(D) Decimal number: . . . . . {0:D}\n" +
            "(X) Hexadecimal:. . . . . . . {0:X}\n",
            Color.Green);
    }
}
/*
This code example produces the following results:

Standard Numeric Format Specifiers
(C) Currency: . . . . . . . . ($123.00)
(D) Decimal:. . . . . . . . . -123
(E) Scientific: . . . . . . . -1.234500E+002
(F) Fixed point:. . . . . . . -123.45
(G) General:. . . . . . . . . -123
    (default):. . . . . . . . -123 (default = 'G')
(N) Number: . . . . . . . . . -123.00
(P) Percent:. . . . . . . . . -12,345.00 %
(R) Round-trip: . . . . . . . -123.45
(X) Hexadecimal:. . . . . . . FFFFFF85

Standard DateTime Format Specifiers
(d) Short date: . . . . . . . 6/26/2004
(D) Long date:. . . . . . . . Saturday, June 26, 2004
(t) Short time: . . . . . . . 8:11 PM
(T) Long time:. . . . . . . . 8:11:04 PM
(f) Full date/short time: . . Saturday, June 26, 2004 8:11 PM
(F) Full date/long time:. . . Saturday, June 26, 2004 8:11:04 PM
(g) General date/short time:. 6/26/2004 8:11 PM
(G) General date/long time: . 6/26/2004 8:11:04 PM
    (default):. . . . . . . . 6/26/2004 8:11:04 PM (default = 'G')
(M) Month:. . . . . . . . . . June 26
(R) RFC1123:. . . . . . . . . Sat, 26 Jun 2004 20:11:04 GMT
(s) Sortable: . . . . . . . . 2004-06-26T20:11:04
(u) Universal sortable: . . . 2004-06-26 20:11:04Z (invariant)
(U) Universal full date/time: Sunday, June 27, 2004 3:11:04 AM
(Y) Year: . . . . . . . . . . June, 2004

Standard Enumeration Format Specifiers
(G) General:. . . . . . . . . Green
    (default):. . . . . . . . Green (default = 'G')
(F) Flags:. . . . . . . . . . Green (flags or integer)
(D) Decimal number: . . . . . 3
(X) Hexadecimal:. . . . . . . 00000003

*/

// This code example demonstrates the Console.WriteLine() method.
// Formatting for this example uses the "en-US" culture.

open System

type Color = 
    | Yellow = 1
    | Blue = 2
    | Green = 3

let thisDate = DateTime.Now

Console.Clear()

// Format a negative integer or floating-point number in various ways.
Console.WriteLine "Standard Numeric Format Specifiers"
Console.WriteLine(
    "(C) Currency: . . . . . . . . {0:C}\n" +
    "(D) Decimal:. . . . . . . . . {0:D}\n" +
    "(E) Scientific: . . . . . . . {1:E}\n" +
    "(F) Fixed point:. . . . . . . {1:F}\n" +
    "(G) General:. . . . . . . . . {0:G}\n" +
    "    (default):. . . . . . . . {0} (default = 'G')\n" +
    "(N) Number: . . . . . . . . . {0:N}\n" +
    "(P) Percent:. . . . . . . . . {1:P}\n" +
    "(R) Round-trip: . . . . . . . {1:R}\n" +
    "(X) Hexadecimal:. . . . . . . {0:X}\n",
    -123, -123.45f)

// Format the current date in various ways.
Console.WriteLine "Standard DateTime Format Specifiers"
Console.WriteLine(
    "(d) Short date: . . . . . . . {0:d}\n" +
    "(D) Long date:. . . . . . . . {0:D}\n" +
    "(t) Short time: . . . . . . . {0:t}\n" +
    "(T) Long time:. . . . . . . . {0:T}\n" +
    "(f) Full date/short time: . . {0:f}\n" +
    "(F) Full date/long time:. . . {0:F}\n" +
    "(g) General date/short time:. {0:g}\n" +
    "(G) General date/long time: . {0:G}\n" +
    "    (default):. . . . . . . . {0} (default = 'G')\n" +
    "(M) Month:. . . . . . . . . . {0:M}\n" +
    "(R) RFC1123:. . . . . . . . . {0:R}\n" +
    "(s) Sortable: . . . . . . . . {0:s}\n" +
    "(u) Universal sortable: . . . {0:u} (invariant)\n" +
    "(U) Universal full date/time: {0:U}\n" +
    "(Y) Year: . . . . . . . . . . {0:Y}\n",
    thisDate)

// Format a Color enumeration value in various ways.
Console.WriteLine "Standard Enumeration Format Specifiers"
Console.WriteLine(
    "(G) General:. . . . . . . . . {0:G}\n" +
    "    (default):. . . . . . . . {0} (default = 'G')\n" +
    "(F) Flags:. . . . . . . . . . {0:F} (flags or integer)\n" +
    "(D) Decimal number: . . . . . {0:D}\n" +
    "(X) Hexadecimal:. . . . . . . {0:X}\n",
    Color.Green)


// This code example produces the following results:
//
// Standard Numeric Format Specifiers
// (C) Currency: . . . . . . . . ($123.00)
// (D) Decimal:. . . . . . . . . -123
// (E) Scientific: . . . . . . . -1.234500E+002
// (F) Fixed point:. . . . . . . -123.45
// (G) General:. . . . . . . . . -123
//     (default):. . . . . . . . -123 (default = 'G')
// (N) Number: . . . . . . . . . -123.00
// (P) Percent:. . . . . . . . . -12,345.00 %
// (R) Round-trip: . . . . . . . -123.45
// (X) Hexadecimal:. . . . . . . FFFFFF85
//
// Standard DateTime Format Specifiers
// (d) Short date: . . . . . . . 6/26/2004
// (D) Long date:. . . . . . . . Saturday, June 26, 2004
// (t) Short time: . . . . . . . 8:11 PM
// (T) Long time:. . . . . . . . 8:11:04 PM
// (f) Full date/short time: . . Saturday, June 26, 2004 8:11 PM
// (F) Full date/long time:. . . Saturday, June 26, 2004 8:11:04 PM
// (g) General date/short time:. 6/26/2004 8:11 PM
// (G) General date/long time: . 6/26/2004 8:11:04 PM
//     (default):. . . . . . . . 6/26/2004 8:11:04 PM (default = 'G')
// (M) Month:. . . . . . . . . . June 26
// (R) RFC1123:. . . . . . . . . Sat, 26 Jun 2004 20:11:04 GMT
// (s) Sortable: . . . . . . . . 2004-06-26T20:11:04
// (u) Universal sortable: . . . 2004-06-26 20:11:04Z (invariant)
// (U) Universal full date/time: Sunday, June 27, 2004 3:11:04 AM
// (Y) Year: . . . . . . . . . . June, 2004
//
// Standard Enumeration Format Specifiers
// (G) General:. . . . . . . . . Green
//     (default):. . . . . . . . Green (default = 'G')
// (F) Flags:. . . . . . . . . . Green (flags or integer)
// (D) Decimal number: . . . . . 3
// (X) Hexadecimal:. . . . . . . 00000003

' This code example demonstrates the Console.WriteLine() method.
' Formatting for this example uses the "en-US" culture.

Class Sample
   Public Enum Color
      Yellow = 1
      Blue = 2
      Green = 3
   End Enum 'Color
   Private Shared thisDate As DateTime = DateTime.Now
   
   Public Shared Sub Main()
      Console.Clear()

      ' Format a negative integer or floating-point number in various ways.
      Console.WriteLine("Standard Numeric Format Specifiers")
      Console.WriteLine("(C) Currency: . . . . . . . . {0:C}" & vbCrLf & _
                        "(D) Decimal:. . . . . . . . . {0:D}" & vbCrLf & _
                        "(E) Scientific: . . . . . . . {1:E}" & vbCrLf & _
                        "(F) Fixed point:. . . . . . . {1:F}" & vbCrLf & _
                        "(G) General:. . . . . . . . . {0:G}" & vbCrLf & _
                        "    (default):. . . . . . . . {0} (default = 'G')" & vbCrLf & _
                        "(N) Number: . . . . . . . . . {0:N}" & vbCrLf & _
                        "(P) Percent:. . . . . . . . . {1:P}" & vbCrLf & _
                        "(R) Round-trip: . . . . . . . {1:R}" & vbCrLf & _
                        "(X) Hexadecimal:. . . . . . . {0:X}" & vbCrLf, _
                        - 123, - 123.45F)

      ' Format the current date in various ways.
      Console.WriteLine("Standard DateTime Format Specifiers")
      Console.WriteLine("(d) Short date: . . . . . . . {0:d}" & vbCrLf & _
                        "(D) Long date:. . . . . . . . {0:D}" & vbCrLf & _
                        "(t) Short time: . . . . . . . {0:t}" & vbCrLf & _
                        "(T) Long time:. . . . . . . . {0:T}" & vbCrLf & _
                        "(f) Full date/short time: . . {0:f}" & vbCrLf & _
                        "(F) Full date/long time:. . . {0:F}" & vbCrLf & _
                        "(g) General date/short time:. {0:g}" & vbCrLf & _
                        "(G) General date/long time: . {0:G}" & vbCrLf & _
                        "    (default):. . . . . . . . {0} (default = 'G')" & vbCrLf & _
                        "(M) Month:. . . . . . . . . . {0:M}" & vbCrLf & _
                        "(R) RFC1123:. . . . . . . . . {0:R}" & vbCrLf & _
                        "(s) Sortable: . . . . . . . . {0:s}" & vbCrLf & _
                        "(u) Universal sortable: . . . {0:u} (invariant)" & vbCrLf & _
                        "(U) Universal full date/time: {0:U}" & vbCrLf & _
                        "(Y) Year: . . . . . . . . . . {0:Y}" & vbCrLf, _
                        thisDate)

      ' Format a Color enumeration value in various ways.
      Console.WriteLine("Standard Enumeration Format Specifiers")
      Console.WriteLine("(G) General:. . . . . . . . . {0:G}" & vbCrLf & _
                        "    (default):. . . . . . . . {0} (default = 'G')" & vbCrLf & _
                        "(F) Flags:. . . . . . . . . . {0:F} (flags or integer)" & vbCrLf & _
                        "(D) Decimal number: . . . . . {0:D}" & vbCrLf & _
                        "(X) Hexadecimal:. . . . . . . {0:X}" & vbCrLf, _
                        Color.Green)
   End Sub
End Class
'
'This code example produces the following results:
'
'Standard Numeric Format Specifiers
'(C) Currency: . . . . . . . . ($123.00)
'(D) Decimal:. . . . . . . . . -123
'(E) Scientific: . . . . . . . -1.234500E+002
'(F) Fixed point:. . . . . . . -123.45
'(G) General:. . . . . . . . . -123
'    (default):. . . . . . . . -123 (default = 'G')
'(N) Number: . . . . . . . . . -123.00
'(P) Percent:. . . . . . . . . -12,345.00 %
'(R) Round-trip: . . . . . . . -123.45
'(X) Hexadecimal:. . . . . . . FFFFFF85
'
'Standard DateTime Format Specifiers
'(d) Short date: . . . . . . . 6/26/2004
'(D) Long date:. . . . . . . . Saturday, June 26, 2004
'(t) Short time: . . . . . . . 8:11 PM
'(T) Long time:. . . . . . . . 8:11:04 PM
'(f) Full date/short time: . . Saturday, June 26, 2004 8:11 PM
'(F) Full date/long time:. . . Saturday, June 26, 2004 8:11:04 PM
'(g) General date/short time:. 6/26/2004 8:11 PM
'(G) General date/long time: . 6/26/2004 8:11:04 PM
'    (default):. . . . . . . . 6/26/2004 8:11:04 PM (default = 'G')
'(M) Month:. . . . . . . . . . June 26
'(R) RFC1123:. . . . . . . . . Sat, 26 Jun 2004 20:11:04 GMT
'(s) Sortable: . . . . . . . . 2004-06-26T20:11:04
'(u) Universal sortable: . . . 2004-06-26 20:11:04Z (invariant)
'(U) Universal full date/time: Sunday, June 27, 2004 3:11:04 AM
'(Y) Year: . . . . . . . . . . June, 2004
'
'Standard Enumeration Format Specifiers
'(G) General:. . . . . . . . . Green
'    (default):. . . . . . . . Green (default = 'G')
'(F) Flags:. . . . . . . . . . Green (flags or integer)
'(D) Decimal number: . . . . . 3
'(X) Hexadecimal:. . . . . . . 00000003
'

以下範例是一個小費計算器，計算出18% 小費，並用此 WriteLine 方法顯示原始費用、小費金額及總金額。此範例是主控台應用程式，要求使用者以命令行參數的形式提供原始費用的數量。

using System;

public class TipCalculator
{
    private const double tipRate = 0.18;
    public static void Main(string[] args)
    {
        double billTotal;
        if (args.Length == 0 || ! Double.TryParse(args[0], out billTotal))
        {
            Console.WriteLine("usage: TIPCALC total");
            return;
        }
        double tip = billTotal * tipRate;
        Console.WriteLine();
        Console.WriteLine($"Bill total:\t{billTotal,8:c}");
        Console.WriteLine($"Tip total/rate:\t{tip,8:c} ({tipRate:p1})");
        Console.WriteLine(("").PadRight(24, '-'));
        Console.WriteLine($"Grand total:\t{billTotal + tip,8:c}");
    }
}

/*
>tipcalc 52.23

Bill total:       $52.23
Tip total/rate:    $9.40 (18.0 %)
------------------------
Grand total:      $61.63
*/

open System

let tipRate = 0.18

let args = Environment.GetCommandLineArgs()[1..] 

if args.Length = 0 then 
    Console.WriteLine "usage: TIPCALC total"
else
    match Double.TryParse args[0] with
    | true, billTotal ->
        let tip = billTotal * tipRate
        Console.WriteLine()
        Console.WriteLine $"Bill total:\t{billTotal,8:c}" 
        Console.WriteLine $"Tip total/rate:\t{tip,8:c} ({tipRate:p1})"
        Console.WriteLine("".PadRight(24, '-'))
        Console.WriteLine $"Grand total:\t{billTotal + tip,8:c}" 
    | _ ->
        Console.WriteLine "usage: TIPCALC total"

// >tipcalc 52.23
//
// Bill total:       $52.23
// Tip total/rate:    $9.40 (18.0 %)
// ------------------------
// Grand total:      $61.63

Public Module TipCalculator
    Private Const tipRate As Double = 0.18
   
    Public Sub Main(args As String())
        Dim billTotal As Double
        If (args.Length = 0) OrElse (Not Double.TryParse(args(0), billTotal)) Then
            Console.WriteLine("usage: TIPCALC total")
            Return
        End If

        Dim tip As Double = billTotal * tipRate
        Console.WriteLine()
        Console.WriteLine($"Bill total:{vbTab}{billTotal,8:c}")
        Console.WriteLine($"Tip total/rate:{vbTab}{tip,8:c} ({tipRate:p1})")
        Console.WriteLine("".PadRight(24, "-"c))
        Console.WriteLine($"Grand total:{vbTab}{billTotal + tip,8:c}")
    End Sub

End Module

'Example Output:
'---------------
' >tipcalc 52.23
' 
' Bill total:       $52.23
' Tip total/rate:    $9.40 (18.0 %)
' ------------------------
' Grand total:      $61.63

備註

此方法利用 .NET 的複合格式化功能，將物件的值轉換為其文字表示，並將該表示嵌入字串中。產生的字串會寫入輸出數據流。

參數 format 由零段或多段文字串連，與零或多個索引佔位符（稱為格式項）混合組成，這些佔位符對應於此方法參數列表中的物件。格式化程式會將每個格式專案取代為對應物件的文字表示。

格式項目的語法為 {index[,alignment][:formatString]}，指定強制索引、格式化文字的可選長度與對齊，以及一串可選的格式指定字元字串，用以控制對應物件值的格式化。

.NET 提供廣泛的格式支援，如下列格式化主題中更詳細地說明。

關於由 Format AppendFormat、及某些的超載WriteLine方法所支援的複合格式功能，請參見 Composite Formatting。
欲了解更多關於數值格式指定符的資訊，請參閱標準數值格式字串與自訂數值格式字串。
欲了解更多日期與時間格式指定符的資訊，請參閱標準日期與時間格式字串及自訂日期與時間格式字串。
欲了解更多關於枚舉格式指定符的資訊，請參見列舉格式字串。
欲了解更多格式相關資訊，請參閱格式類型。

欲了解更多關於線終端器的資訊，請參閱無參數方法的備註章節 WriteLine 。

另請參閱

適用於

WriteLine(String)

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

將指定的字串值，後面接著目前的行終止符寫入標準輸出數據流。

public:
 static void WriteLine(System::String ^ value);

public static void WriteLine(string? value);

public static void WriteLine(string value);

static member WriteLine : string -> unit

Public Shared Sub WriteLine (value As String)

參數

value: String

要寫入的值。

例外狀況

IOException

發生 I/O 錯誤。

範例

範例中，將線端條從預設值「\r\n」或 vbCrLf 「\r\n\r\n」 vbCrLf + vbCrLf或。接著它呼叫和 WriteLine()WriteLine(String) 方法，將輸出顯示給主控台。

string[] lines = { "This is the first line.",
                   "This is the second line." };
// Output the lines using the default newline sequence.
Console.WriteLine("With the default new line characters:");
Console.WriteLine();
foreach (string line in lines)
   Console.WriteLine(line);

Console.WriteLine();

// Redefine the newline characters to double space.
Console.Out.NewLine = "\r\n\r\n";
// Output the lines using the new newline sequence.
Console.WriteLine("With redefined new line characters:");
Console.WriteLine();
foreach (string line in lines)
   Console.WriteLine(line);

// The example displays the following output:
//       With the default new line characters:
//
//       This is the first line.
//       This is the second line.
//
//       With redefined new line characters:
//
//
//
//       This is the first line.
//
//       This is the second line.

let lines = 
    [ "This is the first line."
      "This is the second line." ]
      
// Output the lines using the default newline sequence.
Console.WriteLine "With the default new line characters:"
Console.WriteLine()
for line in lines do
    Console.WriteLine line

Console.WriteLine()

// Redefine the newline characters to double space.
Console.Out.NewLine <- "\r\n\r\n"
// Output the lines using the new newline sequence.
Console.WriteLine "With redefined new line characters:"
Console.WriteLine()
for line in lines do
    Console.WriteLine line

// The example displays the following output:
//       With the default new line characters:
//
//       This is the first line.
//       This is the second line.
//
//       With redefined new line characters:
//
//
//
//       This is the first line.
//
//       This is the second line.

Module Example
   Public Sub Main()
      Dim lines() As String = { "This is the first line.", _
                                "This is the second line." }
      ' Output the lines using the default newline sequence.
      Console.WriteLine("With the default new line characters:")
      Console.WriteLine()
      For Each line As String In lines
         Console.WriteLine(line)
      Next
      Console.WriteLine()
      
      ' Redefine the newline characters to double space.
      Console.Out.NewLine = vbCrLf + vbCrLf
      ' Output the lines using the new newline sequence.
      Console.WriteLine("With redefined new line characters:")
      Console.WriteLine()
      For Each line As String In lines
         Console.WriteLine(line)
      Next
   End Sub
End Module
' The example displays the following output:
'       With the default new line characters:
'       
'       This is the first line.
'       This is the second line.
'       
'       With redefined new line characters:
'       
'       
'       
'       This is the first line.
'       
'       This is the second line.

備註

若值為 null，則僅將線路終端器寫入標準輸出串流。

欲了解更多關於線終端器的資訊，請參閱方法 WriteLine() 的備註章節。

另請參閱

適用於

WriteLine(Char[], Int32, Int32)

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

將 Unicode 字元的指定子陣列，後面接著目前的行終止符寫入標準輸出數據流。

public:
 static void WriteLine(cli::array <char> ^ buffer, int index, int count);

public static void WriteLine(char[] buffer, int index, int count);

static member WriteLine : char[] * int * int -> unit

Public Shared Sub WriteLine (buffer As Char(), index As Integer, count As Integer)

參數

buffer: Char[]

Unicode 字元的陣列。

index: Int32

起始位置。buffer

count: Int32

要寫入的字元數。

例外狀況

ArgumentNullException

buffer 為 null。

ArgumentOutOfRangeException

index 或 count 小於零。

ArgumentException

index 加指定 count 一個不在 buffer的局面。

IOException

發生 I/O 錯誤。

備註

此方法將 count 從的位置 indexbuffer 開始的字元寫入標準輸出串流。

欲了解更多關於線終端器的資訊，請參閱無參數方法的備註章節 WriteLine 。

另請參閱

適用於

WriteLine(String, ReadOnlySpan<Object>)

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

使用指定的格式資訊，將指定之物件範圍的文字表示，後面接著目前的行終止符寫入標準輸出數據流。

public:
 static void WriteLine(System::String ^ format, ReadOnlySpan<System::Object ^> arg);

public static void WriteLine(string format, scoped ReadOnlySpan<object?> arg);

static member WriteLine : string * ReadOnlySpan<obj> -> unit

Public Shared Sub WriteLine (format As String, arg As ReadOnlySpan(Of Object))

參數

format: String

複合格式字串。

arg: ReadOnlySpan<Object>

使用格式寫入的物件範圍。

適用於

WriteLine(String, Object[])

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

使用指定的格式資訊，將指定之物件數位的文字表示，後面接著目前的行終止符寫入標準輸出數據流。

public:
 static void WriteLine(System::String ^ format, ... cli::array <System::Object ^> ^ arg);

public static void WriteLine(string format, params object?[]? arg);

public static void WriteLine(string format, params object[] arg);

static member WriteLine : string * obj[] -> unit

Public Shared Sub WriteLine (format As String, ParamArray arg As Object())

參數

format: String

複合格式字串。

arg: Object[]

一個用 format來寫入的物件陣列。

例外狀況

IOException

發生 I/O 錯誤。

ArgumentNullException

format 或 arg 為 null。

FormatException

格式規範在中 format 是無效的。

範例

下列範例示範數位、日期和列舉的標準格式規範。

// This code example demonstrates the Console.WriteLine() method.
// Formatting for this example uses the "en-US" culture.

using System;
class Sample
{
    enum Color {Yellow = 1, Blue, Green};
    static DateTime thisDate = DateTime.Now;

    public static void Main()
    {
        Console.Clear();

        // Format a negative integer or floating-point number in various ways.
        Console.WriteLine("Standard Numeric Format Specifiers");
        Console.WriteLine(
            "(C) Currency: . . . . . . . . {0:C}\n" +
            "(D) Decimal:. . . . . . . . . {0:D}\n" +
            "(E) Scientific: . . . . . . . {1:E}\n" +
            "(F) Fixed point:. . . . . . . {1:F}\n" +
            "(G) General:. . . . . . . . . {0:G}\n" +
            "    (default):. . . . . . . . {0} (default = 'G')\n" +
            "(N) Number: . . . . . . . . . {0:N}\n" +
            "(P) Percent:. . . . . . . . . {1:P}\n" +
            "(R) Round-trip: . . . . . . . {1:R}\n" +
            "(X) Hexadecimal:. . . . . . . {0:X}\n",
            -123, -123.45f);

        // Format the current date in various ways.
        Console.WriteLine("Standard DateTime Format Specifiers");
        Console.WriteLine(
            "(d) Short date: . . . . . . . {0:d}\n" +
            "(D) Long date:. . . . . . . . {0:D}\n" +
            "(t) Short time: . . . . . . . {0:t}\n" +
            "(T) Long time:. . . . . . . . {0:T}\n" +
            "(f) Full date/short time: . . {0:f}\n" +
            "(F) Full date/long time:. . . {0:F}\n" +
            "(g) General date/short time:. {0:g}\n" +
            "(G) General date/long time: . {0:G}\n" +
            "    (default):. . . . . . . . {0} (default = 'G')\n" +
            "(M) Month:. . . . . . . . . . {0:M}\n" +
            "(R) RFC1123:. . . . . . . . . {0:R}\n" +
            "(s) Sortable: . . . . . . . . {0:s}\n" +
            "(u) Universal sortable: . . . {0:u} (invariant)\n" +
            "(U) Universal full date/time: {0:U}\n" +
            "(Y) Year: . . . . . . . . . . {0:Y}\n",
            thisDate);

        // Format a Color enumeration value in various ways.
        Console.WriteLine("Standard Enumeration Format Specifiers");
        Console.WriteLine(
            "(G) General:. . . . . . . . . {0:G}\n" +
            "    (default):. . . . . . . . {0} (default = 'G')\n" +
            "(F) Flags:. . . . . . . . . . {0:F} (flags or integer)\n" +
            "(D) Decimal number: . . . . . {0:D}\n" +
            "(X) Hexadecimal:. . . . . . . {0:X}\n",
            Color.Green);
    }
}
/*
This code example produces the following results:

Standard Numeric Format Specifiers
(C) Currency: . . . . . . . . ($123.00)
(D) Decimal:. . . . . . . . . -123
(E) Scientific: . . . . . . . -1.234500E+002
(F) Fixed point:. . . . . . . -123.45
(G) General:. . . . . . . . . -123
    (default):. . . . . . . . -123 (default = 'G')
(N) Number: . . . . . . . . . -123.00
(P) Percent:. . . . . . . . . -12,345.00 %
(R) Round-trip: . . . . . . . -123.45
(X) Hexadecimal:. . . . . . . FFFFFF85

Standard DateTime Format Specifiers
(d) Short date: . . . . . . . 6/26/2004
(D) Long date:. . . . . . . . Saturday, June 26, 2004
(t) Short time: . . . . . . . 8:11 PM
(T) Long time:. . . . . . . . 8:11:04 PM
(f) Full date/short time: . . Saturday, June 26, 2004 8:11 PM
(F) Full date/long time:. . . Saturday, June 26, 2004 8:11:04 PM
(g) General date/short time:. 6/26/2004 8:11 PM
(G) General date/long time: . 6/26/2004 8:11:04 PM
    (default):. . . . . . . . 6/26/2004 8:11:04 PM (default = 'G')
(M) Month:. . . . . . . . . . June 26
(R) RFC1123:. . . . . . . . . Sat, 26 Jun 2004 20:11:04 GMT
(s) Sortable: . . . . . . . . 2004-06-26T20:11:04
(u) Universal sortable: . . . 2004-06-26 20:11:04Z (invariant)
(U) Universal full date/time: Sunday, June 27, 2004 3:11:04 AM
(Y) Year: . . . . . . . . . . June, 2004

Standard Enumeration Format Specifiers
(G) General:. . . . . . . . . Green
    (default):. . . . . . . . Green (default = 'G')
(F) Flags:. . . . . . . . . . Green (flags or integer)
(D) Decimal number: . . . . . 3
(X) Hexadecimal:. . . . . . . 00000003

*/

// This code example demonstrates the Console.WriteLine() method.
// Formatting for this example uses the "en-US" culture.

open System

type Color = 
    | Yellow = 1
    | Blue = 2
    | Green = 3

let thisDate = DateTime.Now

Console.Clear()

// Format a negative integer or floating-point number in various ways.
Console.WriteLine "Standard Numeric Format Specifiers"
Console.WriteLine(
    "(C) Currency: . . . . . . . . {0:C}\n" +
    "(D) Decimal:. . . . . . . . . {0:D}\n" +
    "(E) Scientific: . . . . . . . {1:E}\n" +
    "(F) Fixed point:. . . . . . . {1:F}\n" +
    "(G) General:. . . . . . . . . {0:G}\n" +
    "    (default):. . . . . . . . {0} (default = 'G')\n" +
    "(N) Number: . . . . . . . . . {0:N}\n" +
    "(P) Percent:. . . . . . . . . {1:P}\n" +
    "(R) Round-trip: . . . . . . . {1:R}\n" +
    "(X) Hexadecimal:. . . . . . . {0:X}\n",
    -123, -123.45f)

// Format the current date in various ways.
Console.WriteLine "Standard DateTime Format Specifiers"
Console.WriteLine(
    "(d) Short date: . . . . . . . {0:d}\n" +
    "(D) Long date:. . . . . . . . {0:D}\n" +
    "(t) Short time: . . . . . . . {0:t}\n" +
    "(T) Long time:. . . . . . . . {0:T}\n" +
    "(f) Full date/short time: . . {0:f}\n" +
    "(F) Full date/long time:. . . {0:F}\n" +
    "(g) General date/short time:. {0:g}\n" +
    "(G) General date/long time: . {0:G}\n" +
    "    (default):. . . . . . . . {0} (default = 'G')\n" +
    "(M) Month:. . . . . . . . . . {0:M}\n" +
    "(R) RFC1123:. . . . . . . . . {0:R}\n" +
    "(s) Sortable: . . . . . . . . {0:s}\n" +
    "(u) Universal sortable: . . . {0:u} (invariant)\n" +
    "(U) Universal full date/time: {0:U}\n" +
    "(Y) Year: . . . . . . . . . . {0:Y}\n",
    thisDate)

// Format a Color enumeration value in various ways.
Console.WriteLine "Standard Enumeration Format Specifiers"
Console.WriteLine(
    "(G) General:. . . . . . . . . {0:G}\n" +
    "    (default):. . . . . . . . {0} (default = 'G')\n" +
    "(F) Flags:. . . . . . . . . . {0:F} (flags or integer)\n" +
    "(D) Decimal number: . . . . . {0:D}\n" +
    "(X) Hexadecimal:. . . . . . . {0:X}\n",
    Color.Green)


// This code example produces the following results:
//
// Standard Numeric Format Specifiers
// (C) Currency: . . . . . . . . ($123.00)
// (D) Decimal:. . . . . . . . . -123
// (E) Scientific: . . . . . . . -1.234500E+002
// (F) Fixed point:. . . . . . . -123.45
// (G) General:. . . . . . . . . -123
//     (default):. . . . . . . . -123 (default = 'G')
// (N) Number: . . . . . . . . . -123.00
// (P) Percent:. . . . . . . . . -12,345.00 %
// (R) Round-trip: . . . . . . . -123.45
// (X) Hexadecimal:. . . . . . . FFFFFF85
//
// Standard DateTime Format Specifiers
// (d) Short date: . . . . . . . 6/26/2004
// (D) Long date:. . . . . . . . Saturday, June 26, 2004
// (t) Short time: . . . . . . . 8:11 PM
// (T) Long time:. . . . . . . . 8:11:04 PM
// (f) Full date/short time: . . Saturday, June 26, 2004 8:11 PM
// (F) Full date/long time:. . . Saturday, June 26, 2004 8:11:04 PM
// (g) General date/short time:. 6/26/2004 8:11 PM
// (G) General date/long time: . 6/26/2004 8:11:04 PM
//     (default):. . . . . . . . 6/26/2004 8:11:04 PM (default = 'G')
// (M) Month:. . . . . . . . . . June 26
// (R) RFC1123:. . . . . . . . . Sat, 26 Jun 2004 20:11:04 GMT
// (s) Sortable: . . . . . . . . 2004-06-26T20:11:04
// (u) Universal sortable: . . . 2004-06-26 20:11:04Z (invariant)
// (U) Universal full date/time: Sunday, June 27, 2004 3:11:04 AM
// (Y) Year: . . . . . . . . . . June, 2004
//
// Standard Enumeration Format Specifiers
// (G) General:. . . . . . . . . Green
//     (default):. . . . . . . . Green (default = 'G')
// (F) Flags:. . . . . . . . . . Green (flags or integer)
// (D) Decimal number: . . . . . 3
// (X) Hexadecimal:. . . . . . . 00000003

' This code example demonstrates the Console.WriteLine() method.
' Formatting for this example uses the "en-US" culture.

Class Sample
   Public Enum Color
      Yellow = 1
      Blue = 2
      Green = 3
   End Enum 'Color
   Private Shared thisDate As DateTime = DateTime.Now
   
   Public Shared Sub Main()
      Console.Clear()

      ' Format a negative integer or floating-point number in various ways.
      Console.WriteLine("Standard Numeric Format Specifiers")
      Console.WriteLine("(C) Currency: . . . . . . . . {0:C}" & vbCrLf & _
                        "(D) Decimal:. . . . . . . . . {0:D}" & vbCrLf & _
                        "(E) Scientific: . . . . . . . {1:E}" & vbCrLf & _
                        "(F) Fixed point:. . . . . . . {1:F}" & vbCrLf & _
                        "(G) General:. . . . . . . . . {0:G}" & vbCrLf & _
                        "    (default):. . . . . . . . {0} (default = 'G')" & vbCrLf & _
                        "(N) Number: . . . . . . . . . {0:N}" & vbCrLf & _
                        "(P) Percent:. . . . . . . . . {1:P}" & vbCrLf & _
                        "(R) Round-trip: . . . . . . . {1:R}" & vbCrLf & _
                        "(X) Hexadecimal:. . . . . . . {0:X}" & vbCrLf, _
                        - 123, - 123.45F)

      ' Format the current date in various ways.
      Console.WriteLine("Standard DateTime Format Specifiers")
      Console.WriteLine("(d) Short date: . . . . . . . {0:d}" & vbCrLf & _
                        "(D) Long date:. . . . . . . . {0:D}" & vbCrLf & _
                        "(t) Short time: . . . . . . . {0:t}" & vbCrLf & _
                        "(T) Long time:. . . . . . . . {0:T}" & vbCrLf & _
                        "(f) Full date/short time: . . {0:f}" & vbCrLf & _
                        "(F) Full date/long time:. . . {0:F}" & vbCrLf & _
                        "(g) General date/short time:. {0:g}" & vbCrLf & _
                        "(G) General date/long time: . {0:G}" & vbCrLf & _
                        "    (default):. . . . . . . . {0} (default = 'G')" & vbCrLf & _
                        "(M) Month:. . . . . . . . . . {0:M}" & vbCrLf & _
                        "(R) RFC1123:. . . . . . . . . {0:R}" & vbCrLf & _
                        "(s) Sortable: . . . . . . . . {0:s}" & vbCrLf & _
                        "(u) Universal sortable: . . . {0:u} (invariant)" & vbCrLf & _
                        "(U) Universal full date/time: {0:U}" & vbCrLf & _
                        "(Y) Year: . . . . . . . . . . {0:Y}" & vbCrLf, _
                        thisDate)

      ' Format a Color enumeration value in various ways.
      Console.WriteLine("Standard Enumeration Format Specifiers")
      Console.WriteLine("(G) General:. . . . . . . . . {0:G}" & vbCrLf & _
                        "    (default):. . . . . . . . {0} (default = 'G')" & vbCrLf & _
                        "(F) Flags:. . . . . . . . . . {0:F} (flags or integer)" & vbCrLf & _
                        "(D) Decimal number: . . . . . {0:D}" & vbCrLf & _
                        "(X) Hexadecimal:. . . . . . . {0:X}" & vbCrLf, _
                        Color.Green)
   End Sub
End Class
'
'This code example produces the following results:
'
'Standard Numeric Format Specifiers
'(C) Currency: . . . . . . . . ($123.00)
'(D) Decimal:. . . . . . . . . -123
'(E) Scientific: . . . . . . . -1.234500E+002
'(F) Fixed point:. . . . . . . -123.45
'(G) General:. . . . . . . . . -123
'    (default):. . . . . . . . -123 (default = 'G')
'(N) Number: . . . . . . . . . -123.00
'(P) Percent:. . . . . . . . . -12,345.00 %
'(R) Round-trip: . . . . . . . -123.45
'(X) Hexadecimal:. . . . . . . FFFFFF85
'
'Standard DateTime Format Specifiers
'(d) Short date: . . . . . . . 6/26/2004
'(D) Long date:. . . . . . . . Saturday, June 26, 2004
'(t) Short time: . . . . . . . 8:11 PM
'(T) Long time:. . . . . . . . 8:11:04 PM
'(f) Full date/short time: . . Saturday, June 26, 2004 8:11 PM
'(F) Full date/long time:. . . Saturday, June 26, 2004 8:11:04 PM
'(g) General date/short time:. 6/26/2004 8:11 PM
'(G) General date/long time: . 6/26/2004 8:11:04 PM
'    (default):. . . . . . . . 6/26/2004 8:11:04 PM (default = 'G')
'(M) Month:. . . . . . . . . . June 26
'(R) RFC1123:. . . . . . . . . Sat, 26 Jun 2004 20:11:04 GMT
'(s) Sortable: . . . . . . . . 2004-06-26T20:11:04
'(u) Universal sortable: . . . 2004-06-26 20:11:04Z (invariant)
'(U) Universal full date/time: Sunday, June 27, 2004 3:11:04 AM
'(Y) Year: . . . . . . . . . . June, 2004
'
'Standard Enumeration Format Specifiers
'(G) General:. . . . . . . . . Green
'    (default):. . . . . . . . Green (default = 'G')
'(F) Flags:. . . . . . . . . . Green (flags or integer)
'(D) Decimal number: . . . . . 3
'(X) Hexadecimal:. . . . . . . 00000003
'

using System;

public class TipCalculator
{
    private const double tipRate = 0.18;
    public static void Main(string[] args)
    {
        double billTotal;
        if (args.Length == 0 || ! Double.TryParse(args[0], out billTotal))
        {
            Console.WriteLine("usage: TIPCALC total");
            return;
        }
        double tip = billTotal * tipRate;
        Console.WriteLine();
        Console.WriteLine($"Bill total:\t{billTotal,8:c}");
        Console.WriteLine($"Tip total/rate:\t{tip,8:c} ({tipRate:p1})");
        Console.WriteLine(("").PadRight(24, '-'));
        Console.WriteLine($"Grand total:\t{billTotal + tip,8:c}");
    }
}

/*
>tipcalc 52.23

Bill total:       $52.23
Tip total/rate:    $9.40 (18.0 %)
------------------------
Grand total:      $61.63
*/

open System

let tipRate = 0.18

let args = Environment.GetCommandLineArgs()[1..] 

if args.Length = 0 then 
    Console.WriteLine "usage: TIPCALC total"
else
    match Double.TryParse args[0] with
    | true, billTotal ->
        let tip = billTotal * tipRate
        Console.WriteLine()
        Console.WriteLine $"Bill total:\t{billTotal,8:c}" 
        Console.WriteLine $"Tip total/rate:\t{tip,8:c} ({tipRate:p1})"
        Console.WriteLine("".PadRight(24, '-'))
        Console.WriteLine $"Grand total:\t{billTotal + tip,8:c}" 
    | _ ->
        Console.WriteLine "usage: TIPCALC total"

// >tipcalc 52.23
//
// Bill total:       $52.23
// Tip total/rate:    $9.40 (18.0 %)
// ------------------------
// Grand total:      $61.63

Public Module TipCalculator
    Private Const tipRate As Double = 0.18
   
    Public Sub Main(args As String())
        Dim billTotal As Double
        If (args.Length = 0) OrElse (Not Double.TryParse(args(0), billTotal)) Then
            Console.WriteLine("usage: TIPCALC total")
            Return
        End If

        Dim tip As Double = billTotal * tipRate
        Console.WriteLine()
        Console.WriteLine($"Bill total:{vbTab}{billTotal,8:c}")
        Console.WriteLine($"Tip total/rate:{vbTab}{tip,8:c} ({tipRate:p1})")
        Console.WriteLine("".PadRight(24, "-"c))
        Console.WriteLine($"Grand total:{vbTab}{billTotal + tip,8:c}")
    End Sub

End Module

'Example Output:
'---------------
' >tipcalc 52.23
' 
' Bill total:       $52.23
' Tip total/rate:    $9.40 (18.0 %)
' ------------------------
' Grand total:      $61.63

備註

此方法利用 .NET 的複合格式化功能，將物件的值轉換為其文字表示，並將該表示嵌入字串中。產生的字串會寫入輸出數據流。

.NET 提供廣泛的格式支援，如下列格式化主題中更詳細地說明。

關於由 Format AppendFormat、及某些的超載WriteLine方法所支援的複合格式功能，請參見 Composite Formatting。
欲了解更多關於數值格式指定符的資訊，請參閱標準數值格式字串與自訂數值格式字串。
欲了解更多日期與時間格式指定符的資訊，請參閱標準日期與時間格式字串及自訂日期與時間格式字串。
欲了解更多關於枚舉格式指定符的資訊，請參見列舉格式字串。
欲了解更多格式相關資訊，請參閱格式類型。

欲了解更多關於線終端器的資訊，請參閱無參數方法的備註章節 WriteLine 。

給呼叫者的注意事項

C++程式代碼不會呼叫這個方法。 C++ 編譯器會解析包含字串及四個或以上物件參數清單的 System.Console.WriteLine 呼叫，作為呼叫 WriteLine(String, Object, Object, Object, Object)。它解析包含字串與物件陣列的 System.Console.WriteLine 呼叫。WriteLine(String, Object)

另請參閱

適用於

WriteLine(String, Object)

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

使用指定的格式資訊，將指定物件的文字表示，後面接著目前的行終止符寫入標準輸出數據流。

public:
 static void WriteLine(System::String ^ format, System::Object ^ arg0);

public static void WriteLine(string format, object? arg0);

public static void WriteLine(string format, object arg0);

static member WriteLine : string * obj -> unit

Public Shared Sub WriteLine (format As String, arg0 As Object)

參數

format: String

複合格式字串。

arg0: Object

一個用來寫入 format的物件。

例外狀況

IOException

發生 I/O 錯誤。

ArgumentNullException

format 為 null。

FormatException

格式規範在中 format 是無效的。

範例

以下範例呼叫該 WriteLine(String, Object) 方法來顯示五個隨機產生 Boolean 的值。

Random rnd = new Random();
// Generate five random Boolean values.
for (int ctr = 1; ctr <= 5; ctr++) {
   bool bln = rnd.Next(0, 2) == 1;
   Console.WriteLine($"True or False: {bln}");
}

// The example displays an output similar to the following:
//       True or False: False
//       True or False: True
//       True or False: False
//       True or False: False
//       True or False: True

let rnd = Random()

// Generate five random Boolean values.
for _ = 1 to 5 do
    let bln = rnd.Next(0, 2) = 1
    Console.WriteLine $"True or False: {bln}"

// The example displays an output similar to the following:
//       True or False: False
//       True or False: True
//       True or False: False
//       True or False: False
//       True or False: True

Module Example
   Public Sub Main()
      Dim rnd As New Random()
      ' Generate five random Boolean values.
      For ctr As Integer = 1 To 5
         Dim bool As Boolean = Convert.ToBoolean(rnd.Next(0, 2))
         Console.WriteLine("True or False: {0}", bool)
      Next
   End Sub
End Module
' The example displays the following output:
'       True or False: False
'       True or False: True
'       True or False: False
'       True or False: False
'       True or False: True

以下範例呼叫該 WriteLine(String, Object) 方法來顯示當前日期。請注意，參數中的 format 格式項目使用「D」標準日期與時間格式字串來顯示當前文化的長日期格式日期。

using System;

public class Example
{
   public static void Main()
   {
      Console.WriteLine("Today's date: {0:D}", DateTime.Now);
   }
}
// The example displays output like the following:
//       Today's date: Monday, April 1, 2019

open System

Console.WriteLine $"Today's date: {DateTime.Now:D}"

// The example displays output like the following:
//       Today's date: Tuesday, December 28, 2021

Module Example
   Public Sub Main()
      Console.WriteLine("Today's date: {0:D}", DateTime.Now)
   End Sub
End Module
' The example displays output like the following:
'       Today's date: Friday, April 1, 2016

備註

此方法利用 .NET 的複合格式化功能，將物件的值轉換為其文字表示，並將該表示嵌入字串中。產生的字串會寫入輸出數據流。

.NET 提供廣泛的格式支援，如下列格式化主題中更詳細地說明。

關於由 Format AppendFormat、及某些的超載WriteLine方法所支援的複合格式功能，請參見 Composite Formatting。
欲了解更多關於數值格式指定符的資訊，請參閱標準數值格式字串與自訂數值格式字串。
欲了解更多日期與時間格式指定符的資訊，請參閱標準日期與時間格式字串及自訂日期與時間格式字串。
欲了解更多關於枚舉格式指定符的資訊，請參見列舉格式字串。
欲了解更多格式相關資訊，請參閱格式類型。

欲了解更多關於線終端器的資訊，請參閱無參數方法的備註章節 WriteLine 。

另請參閱

適用於

WriteLine(UInt64)

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

重要

此 API 不符合 CLS 規範。

將指定之 64 位無符號整數值的文字表示，後面接著目前的行終止符寫入標準輸出數據流。

public:
 static void WriteLine(System::UInt64 value);

[System.CLSCompliant(false)]
public static void WriteLine(ulong value);

[<System.CLSCompliant(false)>]
static member WriteLine : uint64 -> unit

Public Shared Sub WriteLine (value As ULong)

參數

value: UInt64

要寫入的值。

屬性: CLSCompliantAttribute

例外狀況

IOException

發生 I/O 錯誤。

範例

using System;

public class TipCalculator
{
    private const double tipRate = 0.18;
    public static void Main(string[] args)
    {
        double billTotal;
        if (args.Length == 0 || ! Double.TryParse(args[0], out billTotal))
        {
            Console.WriteLine("usage: TIPCALC total");
            return;
        }
        double tip = billTotal * tipRate;
        Console.WriteLine();
        Console.WriteLine($"Bill total:\t{billTotal,8:c}");
        Console.WriteLine($"Tip total/rate:\t{tip,8:c} ({tipRate:p1})");
        Console.WriteLine(("").PadRight(24, '-'));
        Console.WriteLine($"Grand total:\t{billTotal + tip,8:c}");
    }
}

/*
>tipcalc 52.23

Bill total:       $52.23
Tip total/rate:    $9.40 (18.0 %)
------------------------
Grand total:      $61.63
*/

open System

let tipRate = 0.18

let args = Environment.GetCommandLineArgs()[1..] 

if args.Length = 0 then 
    Console.WriteLine "usage: TIPCALC total"
else
    match Double.TryParse args[0] with
    | true, billTotal ->
        let tip = billTotal * tipRate
        Console.WriteLine()
        Console.WriteLine $"Bill total:\t{billTotal,8:c}" 
        Console.WriteLine $"Tip total/rate:\t{tip,8:c} ({tipRate:p1})"
        Console.WriteLine("".PadRight(24, '-'))
        Console.WriteLine $"Grand total:\t{billTotal + tip,8:c}" 
    | _ ->
        Console.WriteLine "usage: TIPCALC total"

// >tipcalc 52.23
//
// Bill total:       $52.23
// Tip total/rate:    $9.40 (18.0 %)
// ------------------------
// Grand total:      $61.63

Public Module TipCalculator
    Private Const tipRate As Double = 0.18
   
    Public Sub Main(args As String())
        Dim billTotal As Double
        If (args.Length = 0) OrElse (Not Double.TryParse(args(0), billTotal)) Then
            Console.WriteLine("usage: TIPCALC total")
            Return
        End If

        Dim tip As Double = billTotal * tipRate
        Console.WriteLine()
        Console.WriteLine($"Bill total:{vbTab}{billTotal,8:c}")
        Console.WriteLine($"Tip total/rate:{vbTab}{tip,8:c} ({tipRate:p1})")
        Console.WriteLine("".PadRight(24, "-"c))
        Console.WriteLine($"Grand total:{vbTab}{billTotal + tip,8:c}")
    End Sub

End Module

'Example Output:
'---------------
' >tipcalc 52.23
' 
' Bill total:       $52.23
' Tip total/rate:    $9.40 (18.0 %)
' ------------------------
' Grand total:      $61.63

備註

的 value 文字表示是透過呼叫該 UInt64.ToString 方法產生的。

欲了解更多關於線終端器的資訊，請參閱無參數方法的備註章節 WriteLine 。

另請參閱

適用於

WriteLine(UInt32)

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

重要

此 API 不符合 CLS 規範。

將指定之 32 位無符號整數值的文字表示，後面接著目前的行終止符寫入標準輸出數據流。

public:
 static void WriteLine(System::UInt32 value);

[System.CLSCompliant(false)]
public static void WriteLine(uint value);

[<System.CLSCompliant(false)>]
static member WriteLine : uint32 -> unit

Public Shared Sub WriteLine (value As UInteger)

參數

value: UInt32

要寫入的值。

屬性: CLSCompliantAttribute

例外狀況

IOException

發生 I/O 錯誤。

範例

using System;

public class TipCalculator
{
    private const double tipRate = 0.18;
    public static void Main(string[] args)
    {
        double billTotal;
        if (args.Length == 0 || ! Double.TryParse(args[0], out billTotal))
        {
            Console.WriteLine("usage: TIPCALC total");
            return;
        }
        double tip = billTotal * tipRate;
        Console.WriteLine();
        Console.WriteLine($"Bill total:\t{billTotal,8:c}");
        Console.WriteLine($"Tip total/rate:\t{tip,8:c} ({tipRate:p1})");
        Console.WriteLine(("").PadRight(24, '-'));
        Console.WriteLine($"Grand total:\t{billTotal + tip,8:c}");
    }
}

/*
>tipcalc 52.23

Bill total:       $52.23
Tip total/rate:    $9.40 (18.0 %)
------------------------
Grand total:      $61.63
*/

open System

let tipRate = 0.18

let args = Environment.GetCommandLineArgs()[1..] 

if args.Length = 0 then 
    Console.WriteLine "usage: TIPCALC total"
else
    match Double.TryParse args[0] with
    | true, billTotal ->
        let tip = billTotal * tipRate
        Console.WriteLine()
        Console.WriteLine $"Bill total:\t{billTotal,8:c}" 
        Console.WriteLine $"Tip total/rate:\t{tip,8:c} ({tipRate:p1})"
        Console.WriteLine("".PadRight(24, '-'))
        Console.WriteLine $"Grand total:\t{billTotal + tip,8:c}" 
    | _ ->
        Console.WriteLine "usage: TIPCALC total"

// >tipcalc 52.23
//
// Bill total:       $52.23
// Tip total/rate:    $9.40 (18.0 %)
// ------------------------
// Grand total:      $61.63

Public Module TipCalculator
    Private Const tipRate As Double = 0.18
   
    Public Sub Main(args As String())
        Dim billTotal As Double
        If (args.Length = 0) OrElse (Not Double.TryParse(args(0), billTotal)) Then
            Console.WriteLine("usage: TIPCALC total")
            Return
        End If

        Dim tip As Double = billTotal * tipRate
        Console.WriteLine()
        Console.WriteLine($"Bill total:{vbTab}{billTotal,8:c}")
        Console.WriteLine($"Tip total/rate:{vbTab}{tip,8:c} ({tipRate:p1})")
        Console.WriteLine("".PadRight(24, "-"c))
        Console.WriteLine($"Grand total:{vbTab}{billTotal + tip,8:c}")
    End Sub

End Module

'Example Output:
'---------------
' >tipcalc 52.23
' 
' Bill total:       $52.23
' Tip total/rate:    $9.40 (18.0 %)
' ------------------------
' Grand total:      $61.63

備註

的 value 文字表示是透過呼叫該 UInt32.ToString 方法產生的。

欲了解更多關於線終端器的資訊，請參閱無參數方法的備註章節 WriteLine 。

另請參閱

適用於

WriteLine(Single)

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

將指定之單精度浮點值的文字表示，後面接著目前的行終止符寫入標準輸出數據流。

public:
 static void WriteLine(float value);

public static void WriteLine(float value);

static member WriteLine : single -> unit

Public Shared Sub WriteLine (value As Single)

參數

value: Single

要寫入的值。

例外狀況

IOException

發生 I/O 錯誤。

範例

using System;

public class TipCalculator
{
    private const double tipRate = 0.18;
    public static void Main(string[] args)
    {
        double billTotal;
        if (args.Length == 0 || ! Double.TryParse(args[0], out billTotal))
        {
            Console.WriteLine("usage: TIPCALC total");
            return;
        }
        double tip = billTotal * tipRate;
        Console.WriteLine();
        Console.WriteLine($"Bill total:\t{billTotal,8:c}");
        Console.WriteLine($"Tip total/rate:\t{tip,8:c} ({tipRate:p1})");
        Console.WriteLine(("").PadRight(24, '-'));
        Console.WriteLine($"Grand total:\t{billTotal + tip,8:c}");
    }
}

/*
>tipcalc 52.23

Bill total:       $52.23
Tip total/rate:    $9.40 (18.0 %)
------------------------
Grand total:      $61.63
*/

open System

let tipRate = 0.18

let args = Environment.GetCommandLineArgs()[1..] 

if args.Length = 0 then 
    Console.WriteLine "usage: TIPCALC total"
else
    match Double.TryParse args[0] with
    | true, billTotal ->
        let tip = billTotal * tipRate
        Console.WriteLine()
        Console.WriteLine $"Bill total:\t{billTotal,8:c}" 
        Console.WriteLine $"Tip total/rate:\t{tip,8:c} ({tipRate:p1})"
        Console.WriteLine("".PadRight(24, '-'))
        Console.WriteLine $"Grand total:\t{billTotal + tip,8:c}" 
    | _ ->
        Console.WriteLine "usage: TIPCALC total"

// >tipcalc 52.23
//
// Bill total:       $52.23
// Tip total/rate:    $9.40 (18.0 %)
// ------------------------
// Grand total:      $61.63

Public Module TipCalculator
    Private Const tipRate As Double = 0.18
   
    Public Sub Main(args As String())
        Dim billTotal As Double
        If (args.Length = 0) OrElse (Not Double.TryParse(args(0), billTotal)) Then
            Console.WriteLine("usage: TIPCALC total")
            Return
        End If

        Dim tip As Double = billTotal * tipRate
        Console.WriteLine()
        Console.WriteLine($"Bill total:{vbTab}{billTotal,8:c}")
        Console.WriteLine($"Tip total/rate:{vbTab}{tip,8:c} ({tipRate:p1})")
        Console.WriteLine("".PadRight(24, "-"c))
        Console.WriteLine($"Grand total:{vbTab}{billTotal + tip,8:c}")
    End Sub

End Module

'Example Output:
'---------------
' >tipcalc 52.23
' 
' Bill total:       $52.23
' Tip total/rate:    $9.40 (18.0 %)
' ------------------------
' Grand total:      $61.63

備註

的 value 文字表示是透過呼叫該 Single.ToString 方法產生的。

欲了解更多關於線終端器的資訊，請參閱無參數方法的備註章節 WriteLine 。

另請參閱

適用於

WriteLine(Double)

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

將指定之雙精確度浮點值的文字表示，後面接著目前的行終止符寫入標準輸出數據流。

public:
 static void WriteLine(double value);

public static void WriteLine(double value);

static member WriteLine : double -> unit

Public Shared Sub WriteLine (value As Double)

參數

value: Double

要寫入的值。

例外狀況

IOException

發生 I/O 錯誤。

範例

using System;

public class TipCalculator
{
    private const double tipRate = 0.18;
    public static void Main(string[] args)
    {
        double billTotal;
        if (args.Length == 0 || ! Double.TryParse(args[0], out billTotal))
        {
            Console.WriteLine("usage: TIPCALC total");
            return;
        }
        double tip = billTotal * tipRate;
        Console.WriteLine();
        Console.WriteLine($"Bill total:\t{billTotal,8:c}");
        Console.WriteLine($"Tip total/rate:\t{tip,8:c} ({tipRate:p1})");
        Console.WriteLine(("").PadRight(24, '-'));
        Console.WriteLine($"Grand total:\t{billTotal + tip,8:c}");
    }
}

/*
>tipcalc 52.23

Bill total:       $52.23
Tip total/rate:    $9.40 (18.0 %)
------------------------
Grand total:      $61.63
*/

open System

let tipRate = 0.18

let args = Environment.GetCommandLineArgs()[1..] 

if args.Length = 0 then 
    Console.WriteLine "usage: TIPCALC total"
else
    match Double.TryParse args[0] with
    | true, billTotal ->
        let tip = billTotal * tipRate
        Console.WriteLine()
        Console.WriteLine $"Bill total:\t{billTotal,8:c}" 
        Console.WriteLine $"Tip total/rate:\t{tip,8:c} ({tipRate:p1})"
        Console.WriteLine("".PadRight(24, '-'))
        Console.WriteLine $"Grand total:\t{billTotal + tip,8:c}" 
    | _ ->
        Console.WriteLine "usage: TIPCALC total"

// >tipcalc 52.23
//
// Bill total:       $52.23
// Tip total/rate:    $9.40 (18.0 %)
// ------------------------
// Grand total:      $61.63

Public Module TipCalculator
    Private Const tipRate As Double = 0.18
   
    Public Sub Main(args As String())
        Dim billTotal As Double
        If (args.Length = 0) OrElse (Not Double.TryParse(args(0), billTotal)) Then
            Console.WriteLine("usage: TIPCALC total")
            Return
        End If

        Dim tip As Double = billTotal * tipRate
        Console.WriteLine()
        Console.WriteLine($"Bill total:{vbTab}{billTotal,8:c}")
        Console.WriteLine($"Tip total/rate:{vbTab}{tip,8:c} ({tipRate:p1})")
        Console.WriteLine("".PadRight(24, "-"c))
        Console.WriteLine($"Grand total:{vbTab}{billTotal + tip,8:c}")
    End Sub

End Module

'Example Output:
'---------------
' >tipcalc 52.23
' 
' Bill total:       $52.23
' Tip total/rate:    $9.40 (18.0 %)
' ------------------------
' Grand total:      $61.63

備註

的 value 文字表示是透過呼叫該 Double.ToString 方法產生的。

欲了解更多關於線終端器的資訊，請參閱無參數方法的備註章節 WriteLine 。

另請參閱

適用於

WriteLine(Object)

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

將指定物件的文字表示，後面接著目前的行終止符寫入標準輸出數據流。

public:
 static void WriteLine(System::Object ^ value);

public static void WriteLine(object? value);

public static void WriteLine(object value);

static member WriteLine : obj -> unit

Public Shared Sub WriteLine (value As Object)

參數

value: Object

要寫入的值。

例外狀況

IOException

發生 I/O 錯誤。

範例

以下範例使用此 WriteLine(Object) 方法，將物件陣列中的每個值顯示給主控台。

Object[] values = { true, 12.632, 17908, "stringValue",
                           'a', 16907.32m };
foreach (var value in values)
   Console.WriteLine(value);

// The example displays the following output:
//    True
//    12.632
//    17908
//    stringValue
//    a
//    16907.32

let values: obj [] = 
    [| true; 12.632; 17908; "stringValue"; 'a'; 16907.32M |]

for value in values do
   Console.WriteLine value

// The example displays the following output:
//    True
//    12.632
//    17908
//    stringValue
//    a
//    16907.32

Module Example
   Public Sub Main()
      Dim values() As Object = { True, 12.632, 17908, "stringValue",
                                 "a"c, 16907.32d }
      For Each value In values
         Console.WriteLine(value)
      Next                           
   End Sub
End Module
' The example displays the following output:
'    True
'    12.632
'    17908
'    stringValue
'    a
'    16907.32

備註

若 value 是 null，則僅寫入線終止子。否則， ToString 會呼叫的方法 value 來產生其字串表示，並將所得字串寫入標準輸出串流。

欲了解更多關於線終端器的資訊，請參閱無參數方法的備註章節 WriteLine 。

另請參閱

適用於

WriteLine(Int64)

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

將指定之64位帶正負號整數值的文字表示，後面接著目前的行終止符寫入標準輸出數據流。

public:
 static void WriteLine(long value);

public static void WriteLine(long value);

static member WriteLine : int64 -> unit

Public Shared Sub WriteLine (value As Long)

參數

value: Int64

要寫入的值。

例外狀況

IOException

發生 I/O 錯誤。

範例

using System;

public class TipCalculator
{
    private const double tipRate = 0.18;
    public static void Main(string[] args)
    {
        double billTotal;
        if (args.Length == 0 || ! Double.TryParse(args[0], out billTotal))
        {
            Console.WriteLine("usage: TIPCALC total");
            return;
        }
        double tip = billTotal * tipRate;
        Console.WriteLine();
        Console.WriteLine($"Bill total:\t{billTotal,8:c}");
        Console.WriteLine($"Tip total/rate:\t{tip,8:c} ({tipRate:p1})");
        Console.WriteLine(("").PadRight(24, '-'));
        Console.WriteLine($"Grand total:\t{billTotal + tip,8:c}");
    }
}

/*
>tipcalc 52.23

Bill total:       $52.23
Tip total/rate:    $9.40 (18.0 %)
------------------------
Grand total:      $61.63
*/

open System

let tipRate = 0.18

let args = Environment.GetCommandLineArgs()[1..] 

if args.Length = 0 then 
    Console.WriteLine "usage: TIPCALC total"
else
    match Double.TryParse args[0] with
    | true, billTotal ->
        let tip = billTotal * tipRate
        Console.WriteLine()
        Console.WriteLine $"Bill total:\t{billTotal,8:c}" 
        Console.WriteLine $"Tip total/rate:\t{tip,8:c} ({tipRate:p1})"
        Console.WriteLine("".PadRight(24, '-'))
        Console.WriteLine $"Grand total:\t{billTotal + tip,8:c}" 
    | _ ->
        Console.WriteLine "usage: TIPCALC total"

// >tipcalc 52.23
//
// Bill total:       $52.23
// Tip total/rate:    $9.40 (18.0 %)
// ------------------------
// Grand total:      $61.63

Public Module TipCalculator
    Private Const tipRate As Double = 0.18
   
    Public Sub Main(args As String())
        Dim billTotal As Double
        If (args.Length = 0) OrElse (Not Double.TryParse(args(0), billTotal)) Then
            Console.WriteLine("usage: TIPCALC total")
            Return
        End If

        Dim tip As Double = billTotal * tipRate
        Console.WriteLine()
        Console.WriteLine($"Bill total:{vbTab}{billTotal,8:c}")
        Console.WriteLine($"Tip total/rate:{vbTab}{tip,8:c} ({tipRate:p1})")
        Console.WriteLine("".PadRight(24, "-"c))
        Console.WriteLine($"Grand total:{vbTab}{billTotal + tip,8:c}")
    End Sub

End Module

'Example Output:
'---------------
' >tipcalc 52.23
' 
' Bill total:       $52.23
' Tip total/rate:    $9.40 (18.0 %)
' ------------------------
' Grand total:      $61.63

備註

的 value 文字表示是透過呼叫該 Int64.ToString 方法產生的。

欲了解更多關於線終端器的資訊，請參閱無參數方法的備註章節 WriteLine 。

另請參閱

適用於

WriteLine(Int32)

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

將指定之 32 位帶正負號整數值的文字表示，後面接著目前的行終止符寫入標準輸出數據流。

public:
 static void WriteLine(int value);

public static void WriteLine(int value);

static member WriteLine : int -> unit

Public Shared Sub WriteLine (value As Integer)

參數

value: Int32

要寫入的值。

例外狀況

IOException

發生 I/O 錯誤。

範例

using System;

public class TipCalculator
{
    private const double tipRate = 0.18;
    public static void Main(string[] args)
    {
        double billTotal;
        if (args.Length == 0 || ! Double.TryParse(args[0], out billTotal))
        {
            Console.WriteLine("usage: TIPCALC total");
            return;
        }
        double tip = billTotal * tipRate;
        Console.WriteLine();
        Console.WriteLine($"Bill total:\t{billTotal,8:c}");
        Console.WriteLine($"Tip total/rate:\t{tip,8:c} ({tipRate:p1})");
        Console.WriteLine(("").PadRight(24, '-'));
        Console.WriteLine($"Grand total:\t{billTotal + tip,8:c}");
    }
}

/*
>tipcalc 52.23

Bill total:       $52.23
Tip total/rate:    $9.40 (18.0 %)
------------------------
Grand total:      $61.63
*/

open System

let tipRate = 0.18

let args = Environment.GetCommandLineArgs()[1..] 

if args.Length = 0 then 
    Console.WriteLine "usage: TIPCALC total"
else
    match Double.TryParse args[0] with
    | true, billTotal ->
        let tip = billTotal * tipRate
        Console.WriteLine()
        Console.WriteLine $"Bill total:\t{billTotal,8:c}" 
        Console.WriteLine $"Tip total/rate:\t{tip,8:c} ({tipRate:p1})"
        Console.WriteLine("".PadRight(24, '-'))
        Console.WriteLine $"Grand total:\t{billTotal + tip,8:c}" 
    | _ ->
        Console.WriteLine "usage: TIPCALC total"

// >tipcalc 52.23
//
// Bill total:       $52.23
// Tip total/rate:    $9.40 (18.0 %)
// ------------------------
// Grand total:      $61.63

Public Module TipCalculator
    Private Const tipRate As Double = 0.18
   
    Public Sub Main(args As String())
        Dim billTotal As Double
        If (args.Length = 0) OrElse (Not Double.TryParse(args(0), billTotal)) Then
            Console.WriteLine("usage: TIPCALC total")
            Return
        End If

        Dim tip As Double = billTotal * tipRate
        Console.WriteLine()
        Console.WriteLine($"Bill total:{vbTab}{billTotal,8:c}")
        Console.WriteLine($"Tip total/rate:{vbTab}{tip,8:c} ({tipRate:p1})")
        Console.WriteLine("".PadRight(24, "-"c))
        Console.WriteLine($"Grand total:{vbTab}{billTotal + tip,8:c}")
    End Sub

End Module

'Example Output:
'---------------
' >tipcalc 52.23
' 
' Bill total:       $52.23
' Tip total/rate:    $9.40 (18.0 %)
' ------------------------
' Grand total:      $61.63

備註

的 value 文字表示是透過呼叫該 Int32.ToString 方法產生的。

欲了解更多關於線終端器的資訊，請參閱無參數方法的備註章節 WriteLine 。

另請參閱

適用於

WriteLine(Decimal)

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

將指定 Decimal 值的文字表示，接著是當前的線路終止符，寫入標準輸出串流。

public:
 static void WriteLine(System::Decimal value);

public static void WriteLine(decimal value);

static member WriteLine : decimal -> unit

Public Shared Sub WriteLine (value As Decimal)

參數

value: Decimal

要寫入的值。

例外狀況

IOException

發生 I/O 錯誤。

範例

using System;

public class TipCalculator
{
    private const double tipRate = 0.18;
    public static void Main(string[] args)
    {
        double billTotal;
        if (args.Length == 0 || ! Double.TryParse(args[0], out billTotal))
        {
            Console.WriteLine("usage: TIPCALC total");
            return;
        }
        double tip = billTotal * tipRate;
        Console.WriteLine();
        Console.WriteLine($"Bill total:\t{billTotal,8:c}");
        Console.WriteLine($"Tip total/rate:\t{tip,8:c} ({tipRate:p1})");
        Console.WriteLine(("").PadRight(24, '-'));
        Console.WriteLine($"Grand total:\t{billTotal + tip,8:c}");
    }
}

/*
>tipcalc 52.23

Bill total:       $52.23
Tip total/rate:    $9.40 (18.0 %)
------------------------
Grand total:      $61.63
*/

open System

let tipRate = 0.18

let args = Environment.GetCommandLineArgs()[1..] 

if args.Length = 0 then 
    Console.WriteLine "usage: TIPCALC total"
else
    match Double.TryParse args[0] with
    | true, billTotal ->
        let tip = billTotal * tipRate
        Console.WriteLine()
        Console.WriteLine $"Bill total:\t{billTotal,8:c}" 
        Console.WriteLine $"Tip total/rate:\t{tip,8:c} ({tipRate:p1})"
        Console.WriteLine("".PadRight(24, '-'))
        Console.WriteLine $"Grand total:\t{billTotal + tip,8:c}" 
    | _ ->
        Console.WriteLine "usage: TIPCALC total"

// >tipcalc 52.23
//
// Bill total:       $52.23
// Tip total/rate:    $9.40 (18.0 %)
// ------------------------
// Grand total:      $61.63

Public Module TipCalculator
    Private Const tipRate As Double = 0.18
   
    Public Sub Main(args As String())
        Dim billTotal As Double
        If (args.Length = 0) OrElse (Not Double.TryParse(args(0), billTotal)) Then
            Console.WriteLine("usage: TIPCALC total")
            Return
        End If

        Dim tip As Double = billTotal * tipRate
        Console.WriteLine()
        Console.WriteLine($"Bill total:{vbTab}{billTotal,8:c}")
        Console.WriteLine($"Tip total/rate:{vbTab}{tip,8:c} ({tipRate:p1})")
        Console.WriteLine("".PadRight(24, "-"c))
        Console.WriteLine($"Grand total:{vbTab}{billTotal + tip,8:c}")
    End Sub

End Module

'Example Output:
'---------------
' >tipcalc 52.23
' 
' Bill total:       $52.23
' Tip total/rate:    $9.40 (18.0 %)
' ------------------------
' Grand total:      $61.63

備註

的 value 文字表示是透過呼叫該 Decimal.ToString 方法產生的。

欲了解更多關於線終端器的資訊，請參閱無參數方法的備註章節 WriteLine 。

另請參閱

適用於

WriteLine(Char[])

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

將指定的 Unicode 字元陣列，後面接著目前的行終止符寫入標準輸出數據流。

public:
 static void WriteLine(cli::array <char> ^ buffer);

public static void WriteLine(char[]? buffer);

public static void WriteLine(char[] buffer);

static member WriteLine : char[] -> unit

Public Shared Sub WriteLine (buffer As Char())

參數

buffer: Char[]

Unicode 字元陣列。

例外狀況

IOException

發生 I/O 錯誤。

備註

欲了解更多關於線終端器的資訊，請參閱無參數方法的備註章節 WriteLine 。

另請參閱

適用於

WriteLine(Char)

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

將指定的 Unicode 字元，後面接著目前的行終止符，值寫入標準輸出數據流。

public:
 static void WriteLine(char value);

public static void WriteLine(char value);

static member WriteLine : char -> unit

Public Shared Sub WriteLine (value As Char)

參數

value: Char

要寫入的值。

例外狀況

IOException

發生 I/O 錯誤。

範例

using System;

public class TipCalculator
{
    private const double tipRate = 0.18;
    public static void Main(string[] args)
    {
        double billTotal;
        if (args.Length == 0 || ! Double.TryParse(args[0], out billTotal))
        {
            Console.WriteLine("usage: TIPCALC total");
            return;
        }
        double tip = billTotal * tipRate;
        Console.WriteLine();
        Console.WriteLine($"Bill total:\t{billTotal,8:c}");
        Console.WriteLine($"Tip total/rate:\t{tip,8:c} ({tipRate:p1})");
        Console.WriteLine(("").PadRight(24, '-'));
        Console.WriteLine($"Grand total:\t{billTotal + tip,8:c}");
    }
}

/*
>tipcalc 52.23

Bill total:       $52.23
Tip total/rate:    $9.40 (18.0 %)
------------------------
Grand total:      $61.63
*/

open System

let tipRate = 0.18

let args = Environment.GetCommandLineArgs()[1..] 

if args.Length = 0 then 
    Console.WriteLine "usage: TIPCALC total"
else
    match Double.TryParse args[0] with
    | true, billTotal ->
        let tip = billTotal * tipRate
        Console.WriteLine()
        Console.WriteLine $"Bill total:\t{billTotal,8:c}" 
        Console.WriteLine $"Tip total/rate:\t{tip,8:c} ({tipRate:p1})"
        Console.WriteLine("".PadRight(24, '-'))
        Console.WriteLine $"Grand total:\t{billTotal + tip,8:c}" 
    | _ ->
        Console.WriteLine "usage: TIPCALC total"

// >tipcalc 52.23
//
// Bill total:       $52.23
// Tip total/rate:    $9.40 (18.0 %)
// ------------------------
// Grand total:      $61.63

Public Module TipCalculator
    Private Const tipRate As Double = 0.18
   
    Public Sub Main(args As String())
        Dim billTotal As Double
        If (args.Length = 0) OrElse (Not Double.TryParse(args(0), billTotal)) Then
            Console.WriteLine("usage: TIPCALC total")
            Return
        End If

        Dim tip As Double = billTotal * tipRate
        Console.WriteLine()
        Console.WriteLine($"Bill total:{vbTab}{billTotal,8:c}")
        Console.WriteLine($"Tip total/rate:{vbTab}{tip,8:c} ({tipRate:p1})")
        Console.WriteLine("".PadRight(24, "-"c))
        Console.WriteLine($"Grand total:{vbTab}{billTotal + tip,8:c}")
    End Sub

End Module

'Example Output:
'---------------
' >tipcalc 52.23
' 
' Bill total:       $52.23
' Tip total/rate:    $9.40 (18.0 %)
' ------------------------
' Grand total:      $61.63

備註

欲了解更多關於線終端器的資訊，請參閱無參數方法的備註章節 WriteLine 。

另請參閱

適用於

WriteLine(Boolean)

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

將指定布爾值的文字表示，後面接著目前的行終止符寫入標準輸出數據流。

public:
 static void WriteLine(bool value);

public static void WriteLine(bool value);

static member WriteLine : bool -> unit

Public Shared Sub WriteLine (value As Boolean)

參數

value: Boolean

要寫入的值。

例外狀況

IOException

發生 I/O 錯誤。

範例

以下範例產生十個隨機整數，並使用此 Console.WriteLine(Boolean) 方法表示它們是否為偶數。

// Assign 10 random integers to an array.
Random rnd = new Random();
int[] numbers = new int[10];
for (int ctr = 0; ctr <= numbers.GetUpperBound(0); ctr++)
   numbers[ctr] = rnd.Next();

// Determine whether the numbers are even or odd.
foreach (var number in numbers) {
   bool even = (number % 2 == 0);
   Console.WriteLine("Is {0} even:", number);
   Console.WriteLine(even);
   Console.WriteLine();
}

// Assign 10 random integers to an array.
let rnd = Random()
let numbers = 
    [ for _ = 0 to 9 do
        rnd.Next()]

// Determine whether the numbers are even or odd.
for number in numbers do
    let even = number % 2 = 0
    Console.WriteLine $"Is {number} even:"
    Console.WriteLine even
    Console.WriteLine()

Module Example
   Public Sub Main()
      ' Assign 10 random integers to an array.
      Dim rnd As New Random()
      Dim numbers(9) As Integer
      For ctr As Integer = 0 To numbers.GetUpperBound(0)
         numbers(ctr) = rnd.Next
      Next
      
      ' Determine whether the numbers are even or odd.
      For Each number In numbers
         Dim even As Boolean = (number mod 2 = 0)
         Console.WriteLine("Is {0} even:", number)
         Console.WriteLine(even)
         Console.WriteLine()      
      Next
   End Sub
End Module

備註

的 value 文字表示是透過呼叫該 Boolean.ToString 方法產生的。

欲了解更多關於線終端器的資訊，請參閱無參數方法的備註章節 WriteLine 。

另請參閱

適用於

WriteLine()

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

將目前的行終止符寫入標準輸出數據流。

public:
 static void WriteLine();

public static void WriteLine();

static member WriteLine : unit -> unit

Public Shared Sub WriteLine ()

例外狀況

IOException

發生 I/O 錯誤。

範例

範例中，將線端條從預設值「\r\n」或 vbCrLf 「\r\n\r\n」 vbCrLf + vbCrLf或。接著它呼叫和 WriteLine()WriteLine(String) 方法，將輸出顯示給主控台。

string[] lines = { "This is the first line.",
                   "This is the second line." };
// Output the lines using the default newline sequence.
Console.WriteLine("With the default new line characters:");
Console.WriteLine();
foreach (string line in lines)
   Console.WriteLine(line);

Console.WriteLine();

// Redefine the newline characters to double space.
Console.Out.NewLine = "\r\n\r\n";
// Output the lines using the new newline sequence.
Console.WriteLine("With redefined new line characters:");
Console.WriteLine();
foreach (string line in lines)
   Console.WriteLine(line);

// The example displays the following output:
//       With the default new line characters:
//
//       This is the first line.
//       This is the second line.
//
//       With redefined new line characters:
//
//
//
//       This is the first line.
//
//       This is the second line.

let lines = 
    [ "This is the first line."
      "This is the second line." ]
      
// Output the lines using the default newline sequence.
Console.WriteLine "With the default new line characters:"
Console.WriteLine()
for line in lines do
    Console.WriteLine line

Console.WriteLine()

// Redefine the newline characters to double space.
Console.Out.NewLine <- "\r\n\r\n"
// Output the lines using the new newline sequence.
Console.WriteLine "With redefined new line characters:"
Console.WriteLine()
for line in lines do
    Console.WriteLine line

// The example displays the following output:
//       With the default new line characters:
//
//       This is the first line.
//       This is the second line.
//
//       With redefined new line characters:
//
//
//
//       This is the first line.
//
//       This is the second line.

Module Example
   Public Sub Main()
      Dim lines() As String = { "This is the first line.", _
                                "This is the second line." }
      ' Output the lines using the default newline sequence.
      Console.WriteLine("With the default new line characters:")
      Console.WriteLine()
      For Each line As String In lines
         Console.WriteLine(line)
      Next
      Console.WriteLine()
      
      ' Redefine the newline characters to double space.
      Console.Out.NewLine = vbCrLf + vbCrLf
      ' Output the lines using the new newline sequence.
      Console.WriteLine("With redefined new line characters:")
      Console.WriteLine()
      For Each line As String In lines
         Console.WriteLine(line)
      Next
   End Sub
End Module
' The example displays the following output:
'       With the default new line characters:
'       
'       This is the first line.
'       This is the second line.
'       
'       With redefined new line characters:
'       
'       
'       
'       This is the first line.
'       
'       This is the second line.

備註

預設的行尾是一個字串，其值為回車符後接換行碼（C# 中稱為「\r\n」，Visual vbCrLf Basic 中則為「」）。你可以透過將該屬性的屬性Out設定TextWriter.NewLine成另一串來改變線條終端器。此範例提供圖例。

另請參閱

適用於

WriteLine(String, Object, Object, Object)

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

來源:: Console.cs

使用指定的格式資訊，將指定物件的文字表示，後面接著目前的行終止符寫入標準輸出數據流。

public:
 static void WriteLine(System::String ^ format, System::Object ^ arg0, System::Object ^ arg1, System::Object ^ arg2);

public static void WriteLine(string format, object? arg0, object? arg1, object? arg2);

public static void WriteLine(string format, object arg0, object arg1, object arg2);

static member WriteLine : string * obj * obj * obj -> unit

Public Shared Sub WriteLine (format As String, arg0 As Object, arg1 As Object, arg2 As Object)

參數

format: String

複合格式字串。

arg0: Object

第一個用寫入 format的物件。

arg1: Object

第二個用的物件是用 format。

arg2: Object

第三個用 format來寫的物件。

例外狀況

IOException

發生 I/O 錯誤。

ArgumentNullException

format 為 null。

FormatException

格式規範在中 format 是無效的。

範例

下列範例示範數位、日期和列舉的標準格式規範。

// This code example demonstrates the Console.WriteLine() method.
// Formatting for this example uses the "en-US" culture.

using System;
class Sample
{
    enum Color {Yellow = 1, Blue, Green};
    static DateTime thisDate = DateTime.Now;

    public static void Main()
    {
        Console.Clear();

        // Format a negative integer or floating-point number in various ways.
        Console.WriteLine("Standard Numeric Format Specifiers");
        Console.WriteLine(
            "(C) Currency: . . . . . . . . {0:C}\n" +
            "(D) Decimal:. . . . . . . . . {0:D}\n" +
            "(E) Scientific: . . . . . . . {1:E}\n" +
            "(F) Fixed point:. . . . . . . {1:F}\n" +
            "(G) General:. . . . . . . . . {0:G}\n" +
            "    (default):. . . . . . . . {0} (default = 'G')\n" +
            "(N) Number: . . . . . . . . . {0:N}\n" +
            "(P) Percent:. . . . . . . . . {1:P}\n" +
            "(R) Round-trip: . . . . . . . {1:R}\n" +
            "(X) Hexadecimal:. . . . . . . {0:X}\n",
            -123, -123.45f);

        // Format the current date in various ways.
        Console.WriteLine("Standard DateTime Format Specifiers");
        Console.WriteLine(
            "(d) Short date: . . . . . . . {0:d}\n" +
            "(D) Long date:. . . . . . . . {0:D}\n" +
            "(t) Short time: . . . . . . . {0:t}\n" +
            "(T) Long time:. . . . . . . . {0:T}\n" +
            "(f) Full date/short time: . . {0:f}\n" +
            "(F) Full date/long time:. . . {0:F}\n" +
            "(g) General date/short time:. {0:g}\n" +
            "(G) General date/long time: . {0:G}\n" +
            "    (default):. . . . . . . . {0} (default = 'G')\n" +
            "(M) Month:. . . . . . . . . . {0:M}\n" +
            "(R) RFC1123:. . . . . . . . . {0:R}\n" +
            "(s) Sortable: . . . . . . . . {0:s}\n" +
            "(u) Universal sortable: . . . {0:u} (invariant)\n" +
            "(U) Universal full date/time: {0:U}\n" +
            "(Y) Year: . . . . . . . . . . {0:Y}\n",
            thisDate);

        // Format a Color enumeration value in various ways.
        Console.WriteLine("Standard Enumeration Format Specifiers");
        Console.WriteLine(
            "(G) General:. . . . . . . . . {0:G}\n" +
            "    (default):. . . . . . . . {0} (default = 'G')\n" +
            "(F) Flags:. . . . . . . . . . {0:F} (flags or integer)\n" +
            "(D) Decimal number: . . . . . {0:D}\n" +
            "(X) Hexadecimal:. . . . . . . {0:X}\n",
            Color.Green);
    }
}
/*
This code example produces the following results:

Standard Numeric Format Specifiers
(C) Currency: . . . . . . . . ($123.00)
(D) Decimal:. . . . . . . . . -123
(E) Scientific: . . . . . . . -1.234500E+002
(F) Fixed point:. . . . . . . -123.45
(G) General:. . . . . . . . . -123
    (default):. . . . . . . . -123 (default = 'G')
(N) Number: . . . . . . . . . -123.00
(P) Percent:. . . . . . . . . -12,345.00 %
(R) Round-trip: . . . . . . . -123.45
(X) Hexadecimal:. . . . . . . FFFFFF85

Standard DateTime Format Specifiers
(d) Short date: . . . . . . . 6/26/2004
(D) Long date:. . . . . . . . Saturday, June 26, 2004
(t) Short time: . . . . . . . 8:11 PM
(T) Long time:. . . . . . . . 8:11:04 PM
(f) Full date/short time: . . Saturday, June 26, 2004 8:11 PM
(F) Full date/long time:. . . Saturday, June 26, 2004 8:11:04 PM
(g) General date/short time:. 6/26/2004 8:11 PM
(G) General date/long time: . 6/26/2004 8:11:04 PM
    (default):. . . . . . . . 6/26/2004 8:11:04 PM (default = 'G')
(M) Month:. . . . . . . . . . June 26
(R) RFC1123:. . . . . . . . . Sat, 26 Jun 2004 20:11:04 GMT
(s) Sortable: . . . . . . . . 2004-06-26T20:11:04
(u) Universal sortable: . . . 2004-06-26 20:11:04Z (invariant)
(U) Universal full date/time: Sunday, June 27, 2004 3:11:04 AM
(Y) Year: . . . . . . . . . . June, 2004

Standard Enumeration Format Specifiers
(G) General:. . . . . . . . . Green
    (default):. . . . . . . . Green (default = 'G')
(F) Flags:. . . . . . . . . . Green (flags or integer)
(D) Decimal number: . . . . . 3
(X) Hexadecimal:. . . . . . . 00000003

*/

// This code example demonstrates the Console.WriteLine() method.
// Formatting for this example uses the "en-US" culture.

open System

type Color = 
    | Yellow = 1
    | Blue = 2
    | Green = 3

let thisDate = DateTime.Now

Console.Clear()

// Format a negative integer or floating-point number in various ways.
Console.WriteLine "Standard Numeric Format Specifiers"
Console.WriteLine(
    "(C) Currency: . . . . . . . . {0:C}\n" +
    "(D) Decimal:. . . . . . . . . {0:D}\n" +
    "(E) Scientific: . . . . . . . {1:E}\n" +
    "(F) Fixed point:. . . . . . . {1:F}\n" +
    "(G) General:. . . . . . . . . {0:G}\n" +
    "    (default):. . . . . . . . {0} (default = 'G')\n" +
    "(N) Number: . . . . . . . . . {0:N}\n" +
    "(P) Percent:. . . . . . . . . {1:P}\n" +
    "(R) Round-trip: . . . . . . . {1:R}\n" +
    "(X) Hexadecimal:. . . . . . . {0:X}\n",
    -123, -123.45f)

// Format the current date in various ways.
Console.WriteLine "Standard DateTime Format Specifiers"
Console.WriteLine(
    "(d) Short date: . . . . . . . {0:d}\n" +
    "(D) Long date:. . . . . . . . {0:D}\n" +
    "(t) Short time: . . . . . . . {0:t}\n" +
    "(T) Long time:. . . . . . . . {0:T}\n" +
    "(f) Full date/short time: . . {0:f}\n" +
    "(F) Full date/long time:. . . {0:F}\n" +
    "(g) General date/short time:. {0:g}\n" +
    "(G) General date/long time: . {0:G}\n" +
    "    (default):. . . . . . . . {0} (default = 'G')\n" +
    "(M) Month:. . . . . . . . . . {0:M}\n" +
    "(R) RFC1123:. . . . . . . . . {0:R}\n" +
    "(s) Sortable: . . . . . . . . {0:s}\n" +
    "(u) Universal sortable: . . . {0:u} (invariant)\n" +
    "(U) Universal full date/time: {0:U}\n" +
    "(Y) Year: . . . . . . . . . . {0:Y}\n",
    thisDate)

// Format a Color enumeration value in various ways.
Console.WriteLine "Standard Enumeration Format Specifiers"
Console.WriteLine(
    "(G) General:. . . . . . . . . {0:G}\n" +
    "    (default):. . . . . . . . {0} (default = 'G')\n" +
    "(F) Flags:. . . . . . . . . . {0:F} (flags or integer)\n" +
    "(D) Decimal number: . . . . . {0:D}\n" +
    "(X) Hexadecimal:. . . . . . . {0:X}\n",
    Color.Green)


// This code example produces the following results:
//
// Standard Numeric Format Specifiers
// (C) Currency: . . . . . . . . ($123.00)
// (D) Decimal:. . . . . . . . . -123
// (E) Scientific: . . . . . . . -1.234500E+002
// (F) Fixed point:. . . . . . . -123.45
// (G) General:. . . . . . . . . -123
//     (default):. . . . . . . . -123 (default = 'G')
// (N) Number: . . . . . . . . . -123.00
// (P) Percent:. . . . . . . . . -12,345.00 %
// (R) Round-trip: . . . . . . . -123.45
// (X) Hexadecimal:. . . . . . . FFFFFF85
//
// Standard DateTime Format Specifiers
// (d) Short date: . . . . . . . 6/26/2004
// (D) Long date:. . . . . . . . Saturday, June 26, 2004
// (t) Short time: . . . . . . . 8:11 PM
// (T) Long time:. . . . . . . . 8:11:04 PM
// (f) Full date/short time: . . Saturday, June 26, 2004 8:11 PM
// (F) Full date/long time:. . . Saturday, June 26, 2004 8:11:04 PM
// (g) General date/short time:. 6/26/2004 8:11 PM
// (G) General date/long time: . 6/26/2004 8:11:04 PM
//     (default):. . . . . . . . 6/26/2004 8:11:04 PM (default = 'G')
// (M) Month:. . . . . . . . . . June 26
// (R) RFC1123:. . . . . . . . . Sat, 26 Jun 2004 20:11:04 GMT
// (s) Sortable: . . . . . . . . 2004-06-26T20:11:04
// (u) Universal sortable: . . . 2004-06-26 20:11:04Z (invariant)
// (U) Universal full date/time: Sunday, June 27, 2004 3:11:04 AM
// (Y) Year: . . . . . . . . . . June, 2004
//
// Standard Enumeration Format Specifiers
// (G) General:. . . . . . . . . Green
//     (default):. . . . . . . . Green (default = 'G')
// (F) Flags:. . . . . . . . . . Green (flags or integer)
// (D) Decimal number: . . . . . 3
// (X) Hexadecimal:. . . . . . . 00000003

' This code example demonstrates the Console.WriteLine() method.
' Formatting for this example uses the "en-US" culture.

Class Sample
   Public Enum Color
      Yellow = 1
      Blue = 2
      Green = 3
   End Enum 'Color
   Private Shared thisDate As DateTime = DateTime.Now
   
   Public Shared Sub Main()
      Console.Clear()

      ' Format a negative integer or floating-point number in various ways.
      Console.WriteLine("Standard Numeric Format Specifiers")
      Console.WriteLine("(C) Currency: . . . . . . . . {0:C}" & vbCrLf & _
                        "(D) Decimal:. . . . . . . . . {0:D}" & vbCrLf & _
                        "(E) Scientific: . . . . . . . {1:E}" & vbCrLf & _
                        "(F) Fixed point:. . . . . . . {1:F}" & vbCrLf & _
                        "(G) General:. . . . . . . . . {0:G}" & vbCrLf & _
                        "    (default):. . . . . . . . {0} (default = 'G')" & vbCrLf & _
                        "(N) Number: . . . . . . . . . {0:N}" & vbCrLf & _
                        "(P) Percent:. . . . . . . . . {1:P}" & vbCrLf & _
                        "(R) Round-trip: . . . . . . . {1:R}" & vbCrLf & _
                        "(X) Hexadecimal:. . . . . . . {0:X}" & vbCrLf, _
                        - 123, - 123.45F)

      ' Format the current date in various ways.
      Console.WriteLine("Standard DateTime Format Specifiers")
      Console.WriteLine("(d) Short date: . . . . . . . {0:d}" & vbCrLf & _
                        "(D) Long date:. . . . . . . . {0:D}" & vbCrLf & _
                        "(t) Short time: . . . . . . . {0:t}" & vbCrLf & _
                        "(T) Long time:. . . . . . . . {0:T}" & vbCrLf & _
                        "(f) Full date/short time: . . {0:f}" & vbCrLf & _
                        "(F) Full date/long time:. . . {0:F}" & vbCrLf & _
                        "(g) General date/short time:. {0:g}" & vbCrLf & _
                        "(G) General date/long time: . {0:G}" & vbCrLf & _
                        "    (default):. . . . . . . . {0} (default = 'G')" & vbCrLf & _
                        "(M) Month:. . . . . . . . . . {0:M}" & vbCrLf & _
                        "(R) RFC1123:. . . . . . . . . {0:R}" & vbCrLf & _
                        "(s) Sortable: . . . . . . . . {0:s}" & vbCrLf & _
                        "(u) Universal sortable: . . . {0:u} (invariant)" & vbCrLf & _
                        "(U) Universal full date/time: {0:U}" & vbCrLf & _
                        "(Y) Year: . . . . . . . . . . {0:Y}" & vbCrLf, _
                        thisDate)

      ' Format a Color enumeration value in various ways.
      Console.WriteLine("Standard Enumeration Format Specifiers")
      Console.WriteLine("(G) General:. . . . . . . . . {0:G}" & vbCrLf & _
                        "    (default):. . . . . . . . {0} (default = 'G')" & vbCrLf & _
                        "(F) Flags:. . . . . . . . . . {0:F} (flags or integer)" & vbCrLf & _
                        "(D) Decimal number: . . . . . {0:D}" & vbCrLf & _
                        "(X) Hexadecimal:. . . . . . . {0:X}" & vbCrLf, _
                        Color.Green)
   End Sub
End Class
'
'This code example produces the following results:
'
'Standard Numeric Format Specifiers
'(C) Currency: . . . . . . . . ($123.00)
'(D) Decimal:. . . . . . . . . -123
'(E) Scientific: . . . . . . . -1.234500E+002
'(F) Fixed point:. . . . . . . -123.45
'(G) General:. . . . . . . . . -123
'    (default):. . . . . . . . -123 (default = 'G')
'(N) Number: . . . . . . . . . -123.00
'(P) Percent:. . . . . . . . . -12,345.00 %
'(R) Round-trip: . . . . . . . -123.45
'(X) Hexadecimal:. . . . . . . FFFFFF85
'
'Standard DateTime Format Specifiers
'(d) Short date: . . . . . . . 6/26/2004
'(D) Long date:. . . . . . . . Saturday, June 26, 2004
'(t) Short time: . . . . . . . 8:11 PM
'(T) Long time:. . . . . . . . 8:11:04 PM
'(f) Full date/short time: . . Saturday, June 26, 2004 8:11 PM
'(F) Full date/long time:. . . Saturday, June 26, 2004 8:11:04 PM
'(g) General date/short time:. 6/26/2004 8:11 PM
'(G) General date/long time: . 6/26/2004 8:11:04 PM
'    (default):. . . . . . . . 6/26/2004 8:11:04 PM (default = 'G')
'(M) Month:. . . . . . . . . . June 26
'(R) RFC1123:. . . . . . . . . Sat, 26 Jun 2004 20:11:04 GMT
'(s) Sortable: . . . . . . . . 2004-06-26T20:11:04
'(u) Universal sortable: . . . 2004-06-26 20:11:04Z (invariant)
'(U) Universal full date/time: Sunday, June 27, 2004 3:11:04 AM
'(Y) Year: . . . . . . . . . . June, 2004
'
'Standard Enumeration Format Specifiers
'(G) General:. . . . . . . . . Green
'    (default):. . . . . . . . Green (default = 'G')
'(F) Flags:. . . . . . . . . . Green (flags or integer)
'(D) Decimal number: . . . . . 3
'(X) Hexadecimal:. . . . . . . 00000003
'

using System;

public class TipCalculator
{
    private const double tipRate = 0.18;
    public static void Main(string[] args)
    {
        double billTotal;
        if (args.Length == 0 || ! Double.TryParse(args[0], out billTotal))
        {
            Console.WriteLine("usage: TIPCALC total");
            return;
        }
        double tip = billTotal * tipRate;
        Console.WriteLine();
        Console.WriteLine($"Bill total:\t{billTotal,8:c}");
        Console.WriteLine($"Tip total/rate:\t{tip,8:c} ({tipRate:p1})");
        Console.WriteLine(("").PadRight(24, '-'));
        Console.WriteLine($"Grand total:\t{billTotal + tip,8:c}");
    }
}

/*
>tipcalc 52.23

Bill total:       $52.23
Tip total/rate:    $9.40 (18.0 %)
------------------------
Grand total:      $61.63
*/

open System

let tipRate = 0.18

let args = Environment.GetCommandLineArgs()[1..] 

if args.Length = 0 then 
    Console.WriteLine "usage: TIPCALC total"
else
    match Double.TryParse args[0] with
    | true, billTotal ->
        let tip = billTotal * tipRate
        Console.WriteLine()
        Console.WriteLine $"Bill total:\t{billTotal,8:c}" 
        Console.WriteLine $"Tip total/rate:\t{tip,8:c} ({tipRate:p1})"
        Console.WriteLine("".PadRight(24, '-'))
        Console.WriteLine $"Grand total:\t{billTotal + tip,8:c}" 
    | _ ->
        Console.WriteLine "usage: TIPCALC total"

// >tipcalc 52.23
//
// Bill total:       $52.23
// Tip total/rate:    $9.40 (18.0 %)
// ------------------------
// Grand total:      $61.63

Public Module TipCalculator
    Private Const tipRate As Double = 0.18
   
    Public Sub Main(args As String())
        Dim billTotal As Double
        If (args.Length = 0) OrElse (Not Double.TryParse(args(0), billTotal)) Then
            Console.WriteLine("usage: TIPCALC total")
            Return
        End If

        Dim tip As Double = billTotal * tipRate
        Console.WriteLine()
        Console.WriteLine($"Bill total:{vbTab}{billTotal,8:c}")
        Console.WriteLine($"Tip total/rate:{vbTab}{tip,8:c} ({tipRate:p1})")
        Console.WriteLine("".PadRight(24, "-"c))
        Console.WriteLine($"Grand total:{vbTab}{billTotal + tip,8:c}")
    End Sub

End Module

'Example Output:
'---------------
' >tipcalc 52.23
' 
' Bill total:       $52.23
' Tip total/rate:    $9.40 (18.0 %)
' ------------------------
' Grand total:      $61.63

備註

此方法利用 .NET 的複合格式化功能，將物件的值轉換為其文字表示，並將該表示嵌入字串中。產生的字串會寫入輸出數據流。

.NET 提供廣泛的格式支援，如下列格式化主題中更詳細地說明。

關於由 Format AppendFormat、及某些的超載WriteLine方法所支援的複合格式功能，請參見 Composite Formatting。
欲了解更多關於數值格式指定符的資訊，請參閱標準數值格式字串與自訂數值格式字串。
欲了解更多日期與時間格式指定符的資訊，請參閱標準日期與時間格式字串及自訂日期與時間格式字串。
欲了解更多關於枚舉格式指定符的資訊，請參見列舉格式字串。
欲了解更多格式相關資訊，請參閱格式類型。

欲了解更多關於線終端器的資訊，請參閱無參數方法的備註章節 WriteLine 。

另請參閱

適用於

WriteLine(ReadOnlySpan<Char>)

來源:: Console.cs

來源:: Console.cs

public:
 static void WriteLine(ReadOnlySpan<char> value);

public static void WriteLine(ReadOnlySpan<char> value);

static member WriteLine : ReadOnlySpan<char> -> unit

Public Shared Sub WriteLine (value As ReadOnlySpan(Of Char))

參數

value: ReadOnlySpan<Char>

適用於

WriteLine(String, Object, Object, Object, Object)

重要

此 API 不符合 CLS 規範。

使用指定的格式資訊，將指定物件和可變長度參數清單的文字表示，後面接著目前的行終止符寫入標準輸出數據流。

public:
 static void WriteLine(System::String ^ format, System::Object ^ arg0, System::Object ^ arg1, System::Object ^ arg2, System::Object ^ arg3);

[System.CLSCompliant(false)]
public static void WriteLine(string format, object arg0, object arg1, object arg2, object arg3);

[<System.CLSCompliant(false)>]
static member WriteLine : string * obj * obj * obj * obj -> unit

Public Shared Sub WriteLine (format As String, arg0 As Object, arg1 As Object, arg2 As Object, arg3 As Object)

參數

format: String

複合格式字串。

arg0: Object

第一個用寫入 format的物件。

arg1: Object

第二個用的物件是用 format。

arg2: Object

第三個用 format來寫的物件。

arg3: Object

第四個用 format寫入的物件。

屬性: CLSCompliantAttribute

例外狀況

IOException

發生 I/O 錯誤。

ArgumentNullException

format 為 null。

FormatException

格式規範在中 format 是無效的。

範例

以下範例說明了該方法中使用 WriteLine(String, Object, Object, Object, Object) 變數參數的方法。方法會使用複合格式字串和五個格式專案來呼叫。

using namespace System;

int CountLetters(String^ value);
int CountWhitespace(String^ value);

void main()
{
   String^ value = "This is a test string.";
   
   
   Console::WriteLine("The string '{0}' consists of:" +
                      "{4}{1} characters{4}{2} letters{4}" +
                      "{3} white-space characters", 
                      value, value->Length, CountLetters(value), 
                      CountWhitespace(value), Environment::NewLine);
}

int CountLetters(String^ value)
{
   int nLetters = 0;
   for each (Char ch in value) {
      if (Char::IsLetter(ch))
         nLetters++;
   }
   return nLetters;
}

int CountWhitespace(String^ value)
{
   int nWhitespace = 0;
   for each (Char ch in value) {
      if (Char::IsWhiteSpace(ch))
         nWhitespace++;
   }
   return nWhitespace;
}
// The example displays the following output:
//    The string 'This is a test string.' consists of:
//    22 characters
//    17 letters
//    4 white-space characters

備註

注意

此 API 不符合 CLS 標準。符合 CLS 標準的替代方案為 Console.WriteLine(String, Object[])。 C# 與 Visual Basic 編譯器會自動解析對此方法的呼叫 Console.WriteLine(String, Object[])。

此方法利用 .NET 的複合格式化功能，將物件的值轉換為其文字表示，並將該表示嵌入字串中。產生的字串會寫入輸出數據流。

.NET 提供廣泛的格式支援，如下列格式化主題中更詳細地說明。

關於由 Format AppendFormat、及某些的超載WriteLine方法所支援的複合格式功能，請參見 Composite Formatting。
欲了解更多關於數值格式指定符的資訊，請參閱標準數值格式字串與自訂數值格式字串。
欲了解更多日期與時間格式指定符的資訊，請參閱標準日期與時間格式字串及自訂日期與時間格式字串。
欲了解更多關於枚舉格式指定符的資訊，請參見列舉格式字串。
欲了解更多格式相關資訊，請參閱格式類型。

欲了解更多關於線終端器的資訊，請參閱無參數方法的備註章節 WriteLine 。

給呼叫者的注意事項

此方法標示為 vararg 關鍵字，表示支援可變數量的參數。方法可以從 Visual C++呼叫，但無法從 C# 或 Visual Basic 程式代碼呼叫。 C# 與 Visual Basic 編譯器將的WriteLine(String, Object, Object, Object, Object)呼叫解析為。WriteLine(String, Object[])

另請參閱

適用於

意見反應

此頁面對您有幫助嗎？

共用方式為

Console.WriteLine 方法

定義

多載

備註

WriteLine(String, Object, Object)

參數

例外狀況

範例

備註

另請參閱

適用於

WriteLine(String)

參數

例外狀況

範例

備註

另請參閱

適用於

WriteLine(Char[], Int32, Int32)

參數

例外狀況

備註

另請參閱

適用於

WriteLine(String, ReadOnlySpan<Object>)

參數

適用於

WriteLine(String, Object[])

參數

例外狀況

範例

備註

給呼叫者的注意事項

另請參閱

適用於

WriteLine(String, Object)

參數

例外狀況

範例

備註

另請參閱

適用於

WriteLine(UInt64)

參數

例外狀況

範例

備註

另請參閱

適用於

WriteLine(UInt32)

參數

例外狀況

範例

備註

另請參閱

適用於

WriteLine(Single)

參數

例外狀況

範例

備註

另請參閱

適用於

WriteLine(Double)

參數

例外狀況

範例

備註

另請參閱

適用於

WriteLine(Object)

參數

例外狀況

範例

備註

另請參閱

適用於

WriteLine(Int64)

參數