提供一個C#獲取本機IP地址的方法，不會出現獲取的ip地址是IPV6或不能用的

// 嘗試Ping指定IP是否能夠Ping通

public static bool IsPingIP(string strIP)

{

try

{

//創建Ping對象

Ping ping = new Ping();

//接受Ping返回值

PingReply reply = ping.Send(strIP, 1000);

//Ping通

return true;

}

catch

{

//Ping失敗

return false;

}

}

//得到網關地址

public static string GetGateway()

{

//網關地址

string strGateway = "";

//獲取所有網卡

NetworkInterface[] nics = NetworkInterface.GetAllNetworkInterfaces();

//遍歷數組

foreach (var netWork in nics)

{

//單個網卡的IP對象

IPInterfaceProperties ip = netWork.GetIPProperties();

//獲取該IP對象的網關

GatewayIPAddressInformationCollection gateways = ip.GatewayAddresses;

foreach (var gateWay in gateways)

{

//如果能夠Ping通網關

if (IsPingIP(gateWay.Address.ToString()))

{

//得到網關地址

strGateway = gateWay.Address.ToString();

//跳出循環

break;

}

}

//如果已經得到網關地址

if (strGateway.Length > 0)

{

//跳出循環

break;

}

}

//返回網關地址

return strGateway;

}

//得到IP地址

public static string GetIp()

{

string IPname = "";

try

{

string name = Dns.GetHostName();

IPAddress[] ips;

ips = Dns.GetHostAddresses(name);

string temp = GetGateway();

string gateway = string.Empty;

int num = 0;

for (int i = 0; i < temp.Length; i++)

{

if (temp.Substring(i, 1) == ".")

{

num += 1;

if (num == 3)

i = temp.Length;

}

if (num != 3)

gateway += temp.Substring(i, 1);

}

for (int i = 0; i < ips.Length; i++)

{

if (ips[i].ToString().StartsWith(gateway))

{

IPname += ips[i];

i = ips.Length;

}

}

}

catch

{ }

return IPname;

}

用法

textBox1.Text = GetIp();