代码如下

const http = require('http');
const fs = require("fs");
function read(file){
	fs.readFile(file, function (err, data) {
	   if (err) {
		   return console.error(err);
	   }
	   return data.toString();
	});
}
http.createServer(function (request, response) {
    response.writeHead(200, {'Content-Type': 'text/html'});
	console.log(read("talk.html"));
    response.end(read("talk.html"));
}).listen(8888);

问题：无法访问处于同一文件夹内的talk.html返回了undefined

运行端：nodejs