websocket传递参数（websocket传输文件）

let websocket = new WebSocket(\\\"wss://服务器地址\\\");

websocket.onopen = function() {   websocket.send(\\\"Hello WebSocket\\\");};

websocket.onmessage = function(data) {  console.log(data.data);};

websocket.onerror = function() {  console.log(\\\"出现错误...\\\");}

websocket.onclose = function() {  console.log(\\\"连接关闭...\\\");}

let websocket = new WebSocket(\\\"wss://服务器地址\\\");websocket.onopen = function(evt) {   websocket.send(\\\"连接成功，发送个消息。\\\");};websocket.onmessage = function(data) {  console.log(\\\"获取到数据\\\");};websocket.onerror = function() {  console.log(\\\"出现错误\\\");};websocket.onclose = function() {  console.log(\\\"连接关闭\\\");};

var timer;var startFn = function() {    var ws = new WebSocket(\\\'ws://localhost:3000\\\');    ws.onmessage = function(mes) {        console.log(mes.data);        clearTimeout(timer);//清除计时        timerFn();//开始计时    };    //错误，需要重新发起请求    ws.onerror = function(mes) {        clearTimeout(timer);        timerFn();//重新发起请求    };};var timerFn = function() {    timer = setTimeout(function() {        startFn();//重新发起请求    }, 45000);};startFn()

const WebSocket = require(\\\'ws\\\');const WebSocketServer = WebSocket.Server;//创建 websocket 服务器 监听在 3000 端口const wss = new WebSocketServer({port: 3000});// 服务器被客户端连接wss.on(\\\'connection\\\', function(ws) {    // 接收客户端信息并把信息返回发送    ws.on(\\\'message\\\', function(message) {        ws.send(message + \\\' 客户端消息\\\');    });    var senFn = function() {        ws.send(Math.round(Math.random() * 10));        setTimeFn();    };    var setTimeFn = function() {        setTimeout(function() {            senFn();        },40000);    };    setTimeFn();});