2018-01-24 nodejs学习

创建第一个nodejs应用

var http = require('http');

http.createServer(function(req,res){

    res.writeHead(200,{"Context-Type":"text/plain"});

    res.end();

}).listen(8080);

console.log('server is running');

访问8080端口就能连接服务器,或者

var http = require('http');

var server = http.createServer();

server.on('request',function(req,res){

    res.writeHead(200,{"Context-Type":"text/plain"});

    res.end();

});

server.listen(8080);

事件 events模块

var events = require('events');

var eventEmitter = new events.EventEmitter();

eventEmitter.on(‘eventName’，function）；

eventEmitter.emit('eventName');