var net = require('net');//模塊引入var listenPort = 8080;//監聽端口var server = net.createServer(function(socket){ // 創建socket服務端 console.log('connect: ' +  socket.remoteAddress + ':' + socket.remotePort); socket.setEncoding('binary'); //接收到數據 socket.on('data',function(data){  console.log('client send:' + data); });socket.write('Hello client!/r/n'); // socket.pipe(socket); //數據錯誤事件 socket.on('error',function(exception){  console.log('socket error:' + exception);  socket.end(); }); //客戶端關閉事件 socket.on('close',function(data){  console.log('client closed!');   // socket.remoteAddress + ' ' + socket.remotePort); });}).listen(listenPort);//服務器監聽事件server.on('listening',function(){ console.log("server listening:" + server.address().port);});//服務器錯誤事件server.on("error",function(exception){ console.log("server error:" + exception);});

var net = require('net');var port = 8080;var host = '127.0.0.1';var client= new net.Socket();//創建socket客戶端client.setEncoding('binary');//連接到服務端client.connect(port,host,function(){ client.write('hello server'); //向端口寫入數據到達服務端});client.on('data',function(data){ console.log('from server:'+ data); //得到服務端返回來的數據});client.on('error',function(error){//錯誤出現之后關閉連接 console.log('error:'+error); client.destory();});client.on('close',function(){//正常關閉連接 console.log('Connection closed');});