express路由

路由能力：var express = require("express");

var app = express();

app.get("/",function(req,res){

    res.send("你好");

});

app.get("/haha",function(req,res){

    res.send("这是haha页面，哈哈哈哈哈哈");

});

app.get(/^\/student\/([\d]{10})$/,function(req,res){

    res.send("学生信息，学号" + req.params[0]);

});

app.get("/teacher/:gonghao",function(req,res){

    res.send("老师信息，工号" + req.params.gonghao);

});

app.listen(3000);

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静态文件伺服能力：app.use(express.static("./public"));

app.get(/^\/student\/([\d]{10})$/,function(req,res){

    res.send("学生信息，学号" + req.params[0]);

});