C# 实现 ICMP PING 功能

本代码会执行三次ping，并返回三次ping的平均延迟，单位为毫秒，如果网络不通，返回-1。

public static long ICMPPing(string host)

{

long roundtripTime = 0;

try

{

long totalTime = 0;

int timeout = 120;

int echoNum = 3;

Ping pingSender = new Ping();

int succCount = 0;

for (int i = 0; i < echoNum; i++)

{

PingReply reply = pingSender.Send(host, timeout);

if (reply.Status == IPStatus.Success)

{

totalTime += reply.RoundtripTime;

succCount++;

}

}

if (succCount == 0) return -1;

roundtripTime = totalTime / succCount;

}

catch

{

return -1;

}

return roundtripTime;

}

原文链接地址：https://blog.exsvc.cn/article/csharp-icmp-ping.html