我不明白為什么我無法使以下代碼正常工作。我想用JavaScript連接到服務(wù)器控制臺(tái)應(yīng)用程序。然后將數(shù)據(jù)發(fā)送到服務(wù)器。這是服務(wù)器代碼：    static void Main(string[] args)    {                    TcpListener server = new TcpListener(IPAddress.Parse("127.0.0.1"), 9998);        server.Start();        var client = server.AcceptTcpClient();        var stream = client.GetStream();        while (true)        {            var buffer = new byte[1024];             // wait for data to be received            var bytesRead = stream.Read(buffer, 0, buffer.Length);                            var r = System.Text.Encoding.UTF8.GetString(buffer);            // write received data to the console            Console.WriteLine(r.Substring(0, bytesRead));        }    }這是JavaScript：        var ws = new WebSocket("ws://localhost:9998/service");        ws.onopen = function () {            ws.send("Hello World"); // I WANT TO SEND THIS MESSAGE TO THE SERVER!!!!!!!!        };        ws.onmessage = function (evt) {            var received_msg = evt.data;            alert("Message is received...");        };        ws.onclose = function () {            // websocket is closed.            alert("Connection is closed...");        };當(dāng)我運(yùn)行該代碼時(shí)，會(huì)發(fā)生以下情況：請(qǐng)注意，當(dāng)我運(yùn)行JavaScript時(shí)，服務(wù)器會(huì)接受并成功建立連接。JavaScript無法發(fā)送數(shù)據(jù)。每當(dāng)我放置send方法時(shí)，即使建立連接也不會(huì)發(fā)送。我該如何進(jìn)行這項(xiàng)工作？