PhysicalAddress.None 欄位

public: static initonly System::Net::NetworkInformation::PhysicalAddress ^ None;

public static readonly System.Net.NetworkInformation.PhysicalAddress None;

 staticval mutable None : System.Net.NetworkInformation.PhysicalAddress

Public Shared ReadOnly None As PhysicalAddress 

欄位值

範例

以下程式碼範例示範如何使用此欄位來測試解析位址的結果。

public static PhysicalAddress? StrictParseAddress(string? address)
{
    PhysicalAddress newAddress = PhysicalAddress.Parse(address);
    if (PhysicalAddress.None.Equals(newAddress))
        return null;

    return newAddress;
}

備註

如果你指定Parse地址，該None方法會回傳null。