说明: C@ Ping ICMP 协议 public string PingHost(string host) { // 声明 IPHostEntry IPHostEntry ServerHE, fromHE; int nBytes = 0; int dwStart = 0, dwStop = 0; //初始化ICMP的Socket Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Raw, ProtocolType.I
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