nodejs net模块实现socket

var net = require('net');
var client = net.connect({port: 8080}, function() {
console.log('连接到服务器！');
});
client.on('data', function(data) {
console.log(data.toString());
client.end();
});
client.on('end', function() {
console.log('断开与服务器的连接');
});

var net = require('net');
var server = net.createServer(function(connection) {
console.log('client connected');
connection.on('end', function() {
console.log('客户端关闭连接');
});
connection.write('Hello World!\r\n');
connection.pipe(connection);
});
server.listen(8080, function() {
console.log('server is listening');
});