let http = require("http");

 let fs = require("fs");

 let server = http.createServer((req, res) => {

     if (req.url.indexOf("/api") !== -1) {

         console.log("这是接口地址")

     } else {

         let path = req.url === "/" ? "/index.html" : req.url;

         try {

             let data = fs.readFileSync("./www" + path);

             res.write(data);

             res.end();

         } catch (e) {

             let error = fs.readFileSync("./www/error.html");

             res.write(error);

             res.end();

         }

     }

 });

 server.listen(80, () => {

     console.log("server is running")

 })