步骤一、引入 required 模块
var http = require("http");
步骤二、创建服务器
var http = require('http');
http.createServer(function (request, response) {
response.writeHead(200, {'Content-Type': 'text/plain'});
response.end('Hello World\n');
}).listen(8888);
console.log('Server running at http://127.0.0.1:8888/');
步骤三、浏览器请求服务器