Uri.IsDefaultPort 屬性
定義
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。
會取得一個值，表示 URI 的埠值是否為此方案的預設值。
public:
property bool IsDefaultPort { bool get(); };public bool IsDefaultPort { get; }member this.IsDefaultPort : boolPublic ReadOnly Property IsDefaultPort As Boolean屬性值
true 若屬性中的 Port 值是該方案的預設埠;否則， false。
例外狀況
此實例代表一個相對 URI，且此性質僅適用於絕對 URI。
範例
以下範例建立一個 Uri 實例並檢查是否使用預設埠。
// 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
