POST 数据可能是分多次发送
const http=require('http');
const querystring=require('querystring');
let server=http.createServer(function(req, res){
let arr=[];
req.on('data', buffer=>{
arr.push(buffer);
});
res.on('end', ()=>{
let buffer = Buffer.concat(arr);
let post =querystring.parse(buffer.toString());
});
console.log(post);
});
server.listen(8080);