C# join和split

標籤：

string[] parts = { "A", "B", "C", "D", "E" };
string result = string.Join(",", parts);
Console.WriteLine(result);
for (int i = 0; i < result.Split(‘,‘).Length; ++i)
{
    Console.WriteLine(result.Split(‘,‘)[i]);
}
以後拼接json終於不用寫if了

放一個看到的找IP4的函數，在存在多個IP4的時候有問題
public string GetIP_4()
{
    string restr = "";
    IPAddress[] ipList = Dns.GetHostAddresses(Dns.GetHostName());
    foreach (IPAddress ip in ipList)
    {
        //獲得IPv4                
        if (ip.AddressFamily == AddressFamily.InterNetwork)
        {
            restr = ip.ToString();
            //if (restr.Length >= 9)
            //    break;
        }
    }
    return restr;
}

C# join和split