使用socket写一段代码

使用socket写一段代码可以实现客户端与服务器之间的通信。以下是一个简单的示例代码：

客户端代码：

const io = require('socket.io-client');
var socket = io.connect('http://localhost:8880');

socket.on('connect', function () {
  console.log('Connection with Server established!');
  socket.emit('messages', 'Client has established connection with Server');
});

socket.on('messages_jerry', function (data) {
  console.log("Data sent from Server: " + JSON.stringify(data, null, 2));
  socket.emit('messages', { my: 'data sent from Client' });
});

socket.on('messages', function (data) {
  console.log("Data received from Server: " + JSON.stringify(data, null, 2));
});

服务器端代码：

var app = require('express')();
var server = require('http').Server(app);
var io = require('socket.io')(server);

server.listen(8880);

app.get('/', function (req, res) {
  res.sendFile(__dirname + '/index.html');
});

io.on('connection', function (socket) {
  console.log("Connection coming from client: " + socket.id);
  socket.emit('messages_jerry', { hello: 'world greeting from Server!' });

  socket.on('messages', function (data) {
    console.log("Data received from Client: " + JSON.stringify(data, null, 2));
  });
});

这段代码实现了一个简单的客户端与服务器之间的通信。客户端通过socket.io连接到服务器，并在连接建立后发送一条消息给服务器。服务器接收到消息后，会发送一条回复消息给客户端。客户端和服务器都会打印出收到的消息内容。

请注意，这只是一个简单的示例代码，实际应用中可能需要根据具体需求进行修改和扩展。
#### 引用[.reference_title]
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