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Uri.GetLeftPart(UriPartial) 方法

定義

取得 Uri 執行個體的指定部分。

public:
 System::String ^ GetLeftPart(UriPartial part);
public string GetLeftPart (UriPartial part);
member this.GetLeftPart : UriPartial -> string
Public Function GetLeftPart (part As UriPartial) As String

參數

part
UriPartial

其中一個列舉值,其指定要傳回之 URI 部分的結尾。

傳回

Uri 執行個體的指定部分。

例外狀況

目前的 Uri 執行個體不是絕對執行個體。

指定的 part 無效。

範例

下列範例會 Uri 建立 實例,並將路徑寫入主控台。

// Create Uri
Uri^ uriAddress = gcnew Uri( "http://www.contoso.com/index.htm#search" );
Console::WriteLine( uriAddress->Fragment );
Console::WriteLine( "Uri {0} the default port ", uriAddress->IsDefaultPort ? (String^)"uses" : "does not use" );

Console::WriteLine( "The path of this Uri is {0}", uriAddress->GetLeftPart( UriPartial::Path ) );
Console::WriteLine( "Hash code {0}", uriAddress->GetHashCode() );
// The example displays output similar to the following:
//        #search
//        Uri uses the default port
//        The path of this Uri is http://www.contoso.com/index.htm
//        Hash code -988419291
// Create Uri
Uri uriAddress = new Uri("http://www.contoso.com/index.htm#search");
Console.WriteLine(uriAddress.Fragment);
Console.WriteLine("Uri {0} the default port ", uriAddress.IsDefaultPort ? "uses" : "does not use");

Console.WriteLine("The path of this Uri is {0}", uriAddress.GetLeftPart(UriPartial.Path));
Console.WriteLine("Hash code {0}", uriAddress.GetHashCode());
// The example displays output similar to the following:
//        #search
//        Uri uses the default port
//        The path of this Uri is http://www.contoso.com/index.htm
//        Hash code -988419291
// Create Uri
let uriAddress = Uri "http://www.contoso.com/index.htm#search"
printfn $"{uriAddress.Fragment}"
printfn $"""Uri {if uriAddress.IsDefaultPort then "uses" else "does not use"} the default port """

printfn $"The path of this Uri is {uriAddress.GetLeftPart UriPartial.Path}"
printfn $"Hash code {uriAddress.GetHashCode()}"
// The example displays output similar to the following:
//        #search
//        Uri uses the default port
//        The path of this Uri is http://www.contoso.com/index.htm
//        Hash code -988419291
' Create Uri
Dim uriAddress As New Uri("http://www.contoso.com/index.htm#search")
Console.WriteLine(uriAddress.Fragment)
Console.WriteLine("Uri {0} the default port ", If(uriAddress.IsDefaultPort, "uses", "does not use")) 

Console.WriteLine("The path of this Uri is {0}", uriAddress.GetLeftPart(UriPartial.Path))
Console.WriteLine("Hash code {0}", uriAddress.GetHashCode())
' The example displays output similar to the following:
'        #search
'        Uri uses the default port
'        The path of this Uri is http://www.contoso.com/index.htm
'        Hash code -988419291

備註

方法 GetLeftPart 會傳回包含 URI 字串最左邊部分的字串,結尾為 所 part 指定的部分。

GetLeftPart 在下列情況下包含分隔符號:

  • Scheme 包含配置分隔符號。
  • Authority 不包含路徑分隔符號。
  • Path 包含原始 URI 中路徑分隔符號和任何分隔符號,以及查詢或片段分隔符號為止。
  • Query Path包含 ,加上查詢及其分隔符號。

下列範例示範使用 、 AuthorityPathQuery 呼叫 GetLeftPartScheme 的 URI 和結果。

URI 配置 授權單位 路徑 查詢
http://www.contoso.com/index.htm?date=today http:// http://www.contoso.com http://www.contoso.com/index.htm http://www.contoso.com/index.htm?date=today
http://www.contoso.com/index.htm#main http:// http://www.contoso.com http://www.contoso.com/index.htm http://www.contoso.com/index.htm
mailto:user@contoso.com?subject=uri mailto: <none> mailto:user@contoso.com mailto:user@contoso.com?subject=uri
nntp://news.contoso.com/123456@contoso.com nntp:// nntp://news.contoso.com nntp://news.contoso.com/123456@contoso.com nntp://news.contoso.com/123456@contoso.com
news:123456@contoso.com news: <none> news:123456@contoso.com news:123456@contoso.com
file://server/filename.ext file:// file://server file://server/filename.ext file://server/filename.ext

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