tcpc.Connect(("192.168.10.66",8888);//发出连接请求;
s = tcpc.GetStream();//获取192.168.10.66的信息;
// 读取流并将其转换为 ASCII
    int bytes = s.Read(read, 0, read.Length);
    String Time = Encoding.ASCII.GetString(read);
//显示信息
...........
参考:
TCPClient 
http://chs.gotdotnet.com/QuickStart/aspplus/default.aspx?url=%2fquickstart%2fhowto%2fdoc%2fWebRequests%2fclientGET.aspx
TCPListener 
http://chs.gotdotnet.com/QuickStart/aspplus/default.aspx?url=%2fquickstart%2fhowto%2fdoc%2fWebRequests%2fclientGET.aspx