C # Console program implementation check IP, Ping is normal

using System; using System.Net; using System.Net.NetworkInformation; class Program {      static void Main( string [] args)      {          int count = 4;          IPAddress addr = IPAddress.Parse( "220.181.111.86" );          Ping ping = new Ping();          long timeSum = 0;          int succCount = 0;          //发送          Console.WriteLine( "正在ping {0}" , addr);          for ( int i = 0; i < count; ++i)          {              PingReply pr = ping.Send(addr);              if (pr.Status == IPStatus.TimedOut)                  Console.WriteLine( "超时" );              else if (pr.Status == IPStatus.Success)              {                  Console.WriteLine( "延时：{0}毫秒" , pr.RoundtripTime);                  ++succCount;                  timeSum += pr.RoundtripTime;              }          }          if (timeSum != 0)              Console.WriteLine( "平均延时{0}毫秒，丢包率{1}%" , 1.0 * timeSum / succCount, (count - succCount) * 100.0 / count);          else              Console.WriteLine( "丢包率100%" );          return ;      } }

C # Console program implementation check IP, Ping is normal