public bool Ping(string ip){System.Net.NetworkInformation.Ping p = new System.Net.NetworkInformation.Ping();System.Net.NetworkInformation.PingOptions options = new System.Net.NetworkInformation.PingOptions();options.DontFragment = true;string data = "Test Data!";byte[] buffer = Encoding.ASCII.GetBytes(data);int timeout = 1000; // Timeout 时间，单位：毫秒System.Net.NetworkInformation.PingReply reply = p.Send(ip, timeout, buffer, options);if (reply.Status == System.Net.NetworkInformation.IPStatus.Success)return true;elsereturn false;}


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