学生ID查询

var http = require("http");

var server = http.createServer(function(req,res){
    //得到url
    var userurl = req.url;

    res.writeHead(200,{"Content-Type":"text/html;charset=UTF8"})
    //substr函数来判断此时的开头
    if(userurl.substr(0,9) == "/student/"){
        var studentid = userurl.substr(9);
        console.log(studentid);
        if(/^\d{10}$/.test(studentid)){
            res.end("您要查询学生信息，id为" + studentid);
        }else{
            res.end("学生学号位数不对");
        }
    }else if(userurl.substr(0,9) == "/teacher/"){
        var teacherid = userurl.substr(9);
        if(/^\d{6}$/.test(teacherid)){
            res.end("您要查询老师信息，id为" + teacherid);
        }else{
            res.end("老师学号位数不对");
        }
    }else{
        res.end("请检查url");
    }
});

server.listen(3000,"127.0.0.1");