C# 判断网络是否连接

bool isconn = true;
PingReply pr;
Ping ping = new Ping();
pr = ping.Send("lightyiyi.cn");
if (pr.Status != IPStatus.Success)
{
isconn = false;
}

MessageBox.Show(isconn.ToString());

转载于:https://www.cnblogs.com/Evan-fanfan/p/7977398.html