TimeSpan.Parse 方法

定義

將時間間隔的字串表示,轉換成與其相等的 TimeSpan

多載

Parse(String)

將時間間隔的字串表示,轉換成與其相等的 TimeSpan

Parse(ReadOnlySpan<Char>, IFormatProvider)

使用指定的特定文化特性格式資訊,將時間間隔的範圍表示轉換為其對等的 TimeSpan

Parse(String, IFormatProvider)

使用指定的特定文化特性格式資訊,將時間間隔的字串表示轉換為其相等的 TimeSpan

Parse(String)

Source:
TimeSpan.cs
Source:
TimeSpan.cs
Source:
TimeSpan.cs

將時間間隔的字串表示,轉換成與其相等的 TimeSpan

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

時間間隔,對應至 s

例外狀況

snull

s 具有無效的格式。

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

-或-

天數、小時、分鐘或秒鐘元件中,至少有一個元件超出有效範圍。

範例

下列範例會使用 方法, Parse 將字串陣列 TimeSpan 中的每個項目轉換成值。 它會將目前的系統文化特性變更為克羅埃西亞文 - 克羅埃西亞 (“hr-HR”) 和英文 - 美國 (“en-US”) ,以說明目前系統文化特性如何影響剖析作業。

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
Imports System.Globalization
Imports System.Threading

Module Example
   Public Sub Main()
      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
   End Sub
End Module
' 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

如需此 API 的詳細資訊,請參閱 TimeSpan.Parse 的補充 API 備註

適用於

Parse(ReadOnlySpan<Char>, IFormatProvider)

Source:
TimeSpan.cs
Source:
TimeSpan.cs
Source:
TimeSpan.cs

使用指定的特定文化特性格式資訊,將時間間隔的範圍表示轉換為其對等的 TimeSpan

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,其包含代表要轉換時間間隔的字元。

formatProvider
IFormatProvider

物件,提供特定文化特性格式資訊。

傳回

時間間隔,對應至 input,如 formatProvider 所指定。

實作

適用於

Parse(String, IFormatProvider)

Source:
TimeSpan.cs
Source:
TimeSpan.cs
Source:
TimeSpan.cs

使用指定的特定文化特性格式資訊,將時間間隔的字串表示轉換為其相等的 TimeSpan

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,提供特定文化特性格式資訊。

傳回

時間間隔,對應至 input,如 formatProvider 所指定。

實作

例外狀況

inputnull

input 具有無效的格式。

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

-或-

input 中的天數、小時、分鐘或秒鐘元件中,至少有一個元件超出有效範圍。

範例

下列範例會定義 物件的陣列 CultureInfo ,並使用呼叫 Parse(String, IFormatProvider) 方法中的每個物件來剖析字串數位列中的專案。 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
Imports System.Globalization
Imports System.Threading

Module Example
   Public Sub Main()
      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
   End Sub
End Module
' 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

這個方法會嘗試使用 所formatProvider指定文化特性的每個特定文化特性格式來剖input析 。

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

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

如需此 API 的詳細資訊,請參閱 System.TimeSpan.Parse 的補充 API 備註

適用於