共用方式為


TimeSpan.Parse 方法

定義

將時間區間的字串表示轉換為其 TimeSpan 等價值。

多載

名稱 Description
Parse(ReadOnlySpan<Char>, IFormatProvider)

利用指定的文化特定格式資訊,將時間區間的跨度表示轉換為 TimeSpan 其等效值。

Parse(String, IFormatProvider)

利用指定的文化特定格式資訊,將時間區間的字串表示轉換為其 TimeSpan 等價值。

Parse(String)

將時間區間的字串表示轉換為其 TimeSpan 等價值。

Parse(ReadOnlySpan<Char>, IFormatProvider)

來源:
TimeSpan.cs
來源:
TimeSpan.cs
來源:
TimeSpan.cs
來源:
TimeSpan.cs
來源:
TimeSpan.cs

利用指定的文化特定格式資訊,將時間區間的跨度表示轉換為 TimeSpan 其等效值。

public static TimeSpan Parse(ReadOnlySpan<char> input, IFormatProvider? formatProvider = default);
public static TimeSpan Parse(ReadOnlySpan<char> input, IFormatProvider formatProvider = default);
static member Parse : ReadOnlySpan<char> * IFormatProvider -> TimeSpan
Public Shared Function Parse (input As ReadOnlySpan(Of Char), Optional formatProvider As IFormatProvider = Nothing) As TimeSpan

參數

input
ReadOnlySpan<Char>

範圍,包含表示要轉換之時間間隔的字元。

formatProvider
IFormatProvider

物件,提供特定文化特性的格式資訊。

傳回

一個時間區間,對應於 input,由 指定 formatProvider

實作

適用於

Parse(String, IFormatProvider)

來源:
TimeSpan.cs
來源:
TimeSpan.cs
來源:
TimeSpan.cs
來源:
TimeSpan.cs
來源:
TimeSpan.cs

利用指定的文化特定格式資訊,將時間區間的字串表示轉換為其 TimeSpan 等價值。

public:
 static TimeSpan Parse(System::String ^ input, IFormatProvider ^ formatProvider);
public:
 static TimeSpan Parse(System::String ^ input, IFormatProvider ^ formatProvider) = IParsable<TimeSpan>::Parse;
public static TimeSpan Parse(string input, IFormatProvider formatProvider);
public static TimeSpan Parse(string input, IFormatProvider? formatProvider);
static member Parse : string * IFormatProvider -> TimeSpan
Public Shared Function Parse (input As String, formatProvider As IFormatProvider) As TimeSpan

參數

input
String

字串,指定要轉換的時間間隔。

formatProvider
IFormatProvider

物件,提供特定文化特性的格式資訊。

傳回

一個時間區間,對應於 input,由 指定 formatProvider

實作

例外狀況

inputnull

input 格式無效。

input 代表小於 TimeSpan.MinValue 或大於 TimeSpan.MaxValue 的數字。

-或-

至少有一天、小時、分鐘或秒的 input 成分超出其有效範圍。

範例

以下範例定義了一個物件陣 CultureInfo 列,並利用每個物件 Parse(String, IFormatProvider) 呼叫方法來解析字串陣列中的元素。 此範例說明特定文化特性的慣例如何影響格式化作業。

using System;
using System.Globalization;
using System.Text.RegularExpressions;

public class Example
{
   public static void Main()
   {
      string[] values = { "6", "6:12", "6:12:14", "6:12:14:45", 
                          "6.12:14:45", "6:12:14:45.3448", 
                          "6:12:14:45,3448", "6:34:14:45" };
      CultureInfo[] cultures = { new CultureInfo("en-US"), 
                                 new CultureInfo("ru-RU"),
                                 CultureInfo.InvariantCulture };
      
      string header = String.Format("{0,-17}", "String");
      foreach (CultureInfo culture in cultures)
         header += culture.Equals(CultureInfo.InvariantCulture) ? 
                      String.Format("{0,20}", "Invariant") :
                      String.Format("{0,20}", culture.Name);
      Console.WriteLine(header);
      Console.WriteLine();
      
      foreach (string value in values)
      {
         Console.Write("{0,-17}", value);
         foreach (CultureInfo culture in cultures)
         {
            try {
               TimeSpan ts = TimeSpan.Parse(value, culture);
               Console.Write("{0,20}", ts.ToString("c"));
            }
            catch (FormatException) {
               Console.Write("{0,20}", "Bad Format");
            }   
            catch (OverflowException) {
               Console.Write("{0,20}", "Overflow");
            }      
         }
         Console.WriteLine();                                
      }
   }
}
// The example displays the following output:
//    String                          en-US               ru-RU           Invariant
//    
//    6                          6.00:00:00          6.00:00:00          6.00:00:00
//    6:12                         06:12:00            06:12:00            06:12:00
//    6:12:14                      06:12:14            06:12:14            06:12:14
//    6:12:14:45                 6.12:14:45          6.12:14:45          6.12:14:45
//    6.12:14:45                 6.12:14:45          6.12:14:45          6.12:14:45
//    6:12:14:45.3448    6.12:14:45.3448000          Bad Format  6.12:14:45.3448000
//    6:12:14:45,3448            Bad Format  6.12:14:45.3448000          Bad Format
//    6:34:14:45                   Overflow            Overflow            Overflow
open System
open System.Globalization
open System.Text.RegularExpressions

let values = 
    [| "6"; "6:12"; "6:12:14"; "6:12:14:45" 
       "6.12:14:45"; "6:12:14:45.3448"
       "6:12:14:45,3448"; "6:34:14:45" |]
let cultures = 
    [| CultureInfo "en-US" 
       CultureInfo "ru-RU"
       CultureInfo.InvariantCulture |]

let mutable header = $"""{"String",-17}"""
for culture in cultures do
    header <- header +
        if culture.Equals CultureInfo.InvariantCulture then 
            $"""{"Invariant",20}"""
        else
            $"{culture.Name,20}"
printfn $"{header}\m"

for value in values do
    printf $"{value,-17}"
    for culture in cultures do
        try
            let ts = TimeSpan.Parse(value, culture)
            printf $"{ts,20:c}"
        with
        | :? FormatException ->
            printf $"""{"Bad Format",20}"""
        | :? OverflowException ->
            printf $"""{"Overflow",20}"""
    printfn ""                      
// The example displays the following output:
//    String                          en-US               ru-RU           Invariant
//    
//    6                          6.00:00:00          6.00:00:00          6.00:00:00
//    6:12                         06:12:00            06:12:00            06:12:00
//    6:12:14                      06:12:14            06:12:14            06:12:14
//    6:12:14:45                 6.12:14:45          6.12:14:45          6.12:14:45
//    6.12:14:45                 6.12:14:45          6.12:14:45          6.12:14:45
//    6:12:14:45.3448    6.12:14:45.3448000          Bad Format  6.12:14:45.3448000
//    6:12:14:45,3448            Bad Format  6.12:14:45.3448000          Bad Format
//    6:34:14:45                   Overflow            Overflow            Overflow
Dim values() As String = {"6", "6:12", "6:12:14", "6:12:14:45",
                         "6.12:14:45", "6:12:14:45.3448",
                         "6:12:14:45,3448", "6:34:14:45"}
Dim cultures() As CultureInfo = {New CultureInfo("en-US"),
                                New CultureInfo("ru-RU"),
                                CultureInfo.InvariantCulture}

Dim header As String = String.Format("{0,-17}", "String")
For Each culture As CultureInfo In cultures
    header += If(culture.Equals(CultureInfo.InvariantCulture),
              String.Format("{0,20}", "Invariant"),
              String.Format("{0,20}", culture.Name))
Next
Console.WriteLine(header)
Console.WriteLine()

For Each value As String In values
    Console.Write("{0,-17}", value)
    For Each culture As CultureInfo In cultures
        Try
            Dim ts As TimeSpan = TimeSpan.Parse(value, culture)
            Console.Write("{0,20}", ts.ToString("c"))
        Catch e As FormatException
            Console.Write("{0,20}", "Bad Format")
        Catch e As OverflowException
            Console.Write("{0,20}", "Overflow")
        End Try
    Next
    Console.WriteLine()
Next

' The example displays the following output:
'    String                          en-US               ru-RU           Invariant
'    
'    6                          6.00:00:00          6.00:00:00          6.00:00:00
'    6:12                         06:12:00            06:12:00            06:12:00
'    6:12:14                      06:12:14            06:12:14            06:12:14
'    6:12:14:45                 6.12:14:45          6.12:14:45          6.12:14:45
'    6.12:14:45                 6.12:14:45          6.12:14:45          6.12:14:45
'    6:12:14:45.3448    6.12:14:45.3448000          Bad Format  6.12:14:45.3448000
'    6:12:14:45,3448            Bad Format  6.12:14:45.3448000          Bad Format
'    6:34:14:45                   Overflow            Overflow            Overflow

備註

此方法嘗試透過使用由 formatProvider所指定的文化的每個特定格式來解析input

formatProvider 參數是 IFormatProvider 實作,可提供傳回字串格式的文化特性特定資訊。 formatProvider 參數可以是下列任一項:

如果 formatProvidernull,則會使用與目前文化特性相關聯的 DateTimeFormatInfo 物件。

欲了解更多關於此 API 的資訊,請參閱 System.TimeSpan.Parse 的補充 API 備註

適用於

Parse(String)

來源:
TimeSpan.cs
來源:
TimeSpan.cs
來源:
TimeSpan.cs
來源:
TimeSpan.cs
來源:
TimeSpan.cs

將時間區間的字串表示轉換為其 TimeSpan 等價值。

public:
 static TimeSpan Parse(System::String ^ s);
public static TimeSpan Parse(string s);
static member Parse : string -> TimeSpan
Public Shared Function Parse (s As String) As TimeSpan

參數

s
String

字串,指定要轉換的時間間隔。

傳回

一個時間區間,對應於 s

例外狀況

snull

s 格式無效。

s 代表小於 TimeSpan.MinValue 或大於 TimeSpan.MaxValue 的數字。

-或-

至少有一個天數、小時、分鐘或秒元件超出其有效範圍。

範例

以下範例使用此 Parse 方法將字串陣列中的每個元素轉換為一個 TimeSpan 值。 它將現有系統文化改為克羅埃西亞語 - 克羅埃西亞語(「hr-HR」)和英語 - 美國(「en-US」),以說明現行系統文化如何影響解析操作。

using System;
using System.Globalization;
using System.Threading;

public class Example
{
   public static void Main()
   {
      string[] values = { "6", "6:12", "6:12:14", "6:12:14:45", 
                          "6.12:14:45", "6:12:14:45.3448", 
                          "6:12:14:45,3448", "6:34:14:45" };
      string[] cultureNames = { "hr-HR", "en-US"};
      
      // Change the current culture.
      foreach (string cultureName in cultureNames)
      {
         Thread.CurrentThread.CurrentCulture = new CultureInfo(cultureName);
         Console.WriteLine("Current Culture: {0}", 
                           Thread.CurrentThread.CurrentCulture.Name);
         foreach (string value in values)
         {
            try {
               TimeSpan ts = TimeSpan.Parse(value);
               Console.WriteLine("{0} --> {1}", value, ts.ToString("c"));
            }
            catch (FormatException) {
               Console.WriteLine("{0}: Bad Format", value);
            }   
            catch (OverflowException) {
               Console.WriteLine("{0}: Overflow", value);
            }
         } 
         Console.WriteLine();                                
      }
   }
}
// The example displays the following output:
//    Current Culture: hr-HR
//    6 --> 6.00:00:00
//    6:12 --> 06:12:00
//    6:12:14 --> 06:12:14
//    6:12:14:45 --> 6.12:14:45
//    6.12:14:45 --> 6.12:14:45
//    6:12:14:45.3448: Bad Format
//    6:12:14:45,3448 --> 6.12:14:45.3448000
//    6:34:14:45: Overflow
//    
//    Current Culture: en-US
//    6 --> 6.00:00:00
//    6:12 --> 06:12:00
//    6:12:14 --> 06:12:14
//    6:12:14:45 --> 6.12:14:45
//    6.12:14:45 --> 6.12:14:45
//    6:12:14:45.3448 --> 6.12:14:45.3448000
//    6:12:14:45,3448: Bad Format
//    6:34:14:45: Overflow
open System
open System.Globalization
open System.Threading

let values = 
    [| "6"; "6:12"; "6:12:14"; "6:12:14:45" 
       "6.12:14:45"; "6:12:14:45.3448" 
       "6:12:14:45,3448"; "6:34:14:45" |]
let cultureNames = [| "hr-HR"; "en-US" |]

// Change the current culture.
for cultureName in cultureNames do
    Thread.CurrentThread.CurrentCulture <- CultureInfo cultureName
    printfn $"Current Culture: {Thread.CurrentThread.CurrentCulture.Name}" 
    for value in values do
        try 
            let ts = TimeSpan.Parse value
            printfn $"{value} --> {ts:c}"
        with 
        | :? FormatException ->
            printfn $"{value}: Bad Format"
        | :? OverflowException ->
            printfn $"{value}: Overflow"
    printfn ""                                
// The example displays the following output:
//    Current Culture: hr-HR
//    6 --> 6.00:00:00
//    6:12 --> 06:12:00
//    6:12:14 --> 06:12:14
//    6:12:14:45 --> 6.12:14:45
//    6.12:14:45 --> 6.12:14:45
//    6:12:14:45.3448: Bad Format
//    6:12:14:45,3448 --> 6.12:14:45.3448000
//    6:34:14:45: Overflow
//    
//    Current Culture: en-US
//    6 --> 6.00:00:00
//    6:12 --> 06:12:00
//    6:12:14 --> 06:12:14
//    6:12:14:45 --> 6.12:14:45
//    6.12:14:45 --> 6.12:14:45
//    6:12:14:45.3448 --> 6.12:14:45.3448000
//    6:12:14:45,3448: Bad Format
//    6:34:14:45: Overflow
Dim values() As String = {"6", "6:12", "6:12:14", "6:12:14:45",
                         "6.12:14:45", "6:12:14:45.3448",
                         "6:12:14:45,3448", "6:34:14:45"}
Dim cultureNames() As String = {"hr-HR", "en-US"}

' Change the current culture.
For Each cultureName As String In cultureNames
    Thread.CurrentThread.CurrentCulture = New CultureInfo(cultureName)
    Console.WriteLine("Current Culture: {0}",
                   Thread.CurrentThread.CurrentCulture.Name)
    For Each value As String In values
        Try
            Dim ts As TimeSpan = TimeSpan.Parse(value)
            Console.WriteLine("{0} --> {1}", value, ts.ToString("c"))
        Catch e As FormatException
            Console.WriteLine("{0}: Bad Format", value)
        Catch e As OverflowException
            Console.WriteLine("{0}: Overflow", value)
        End Try
    Next
    Console.WriteLine()
Next

' The example displays the following output:
'       Current Culture: hr-HR
'       6 --> 6.00:00:00
'       6:12 --> 06:12:00
'       6:12:14 --> 06:12:14
'       6:12:14:45 --> 6.12:14:45
'       6.12:14:45 --> 6.12:14:45
'       6:12:14:45.3448: Bad Format
'       6:12:14:45,3448 --> 6.12:14:45.3448000
'       6:34:14:45: Overflow
'       
'       Current Culture: en-US
'       6 --> 6.00:00:00
'       6:12 --> 06:12:00
'       6:12:14 --> 06:12:14
'       6:12:14:45 --> 6.12:14:45
'       6.12:14:45 --> 6.12:14:45
'       6:12:14:45.3448 --> 6.12:14:45.3448000
'       6:12:14:45,3448: Bad Format
'       6:34:14:45: Overflow

備註

欲了解更多關於此 API 的資訊,請參閱 TimeSpan.Parse 的補充 API 備註

適用於