node之url模块

为什么用url模块
　　url模块是处理整个url的，url形式有"/api?username=zll&paw=123456"或""127.0.0.1:8900/api?username=zll&paw=123456""

const http = require("http");
const url = require("url");
let server = http.createServer(function (req, res) {
    // http://localhost:8000/abc?username=abc&psw=123
    console.log(req.url); // /abc?username=abc&psw=123
    let result = url.parse(req.url, true);
    console.log(result.query.psw);

});
// 监听
server.listen(8000);