first.js
var num1 = 20;
var num2 = 30;
var result = num1+num2;
console.log(result);
server.js----node核心文件http
var http = require("http");
http.createServer(function(req,res){
res.end("Hello");
}).listen(3000);
console.log("服务器已启动");
readfile.js
var fs = require("fs");
fs.readFile("data/tempText.txt","banner",function(err){
if(err){
console.log(err);
}else{
console.log("添加成功");
}
readfile.js变异版
var http = require("http");
var fs = require("fs");
var server = http.createServer(function(req,res){
fs.readFile("data/tempText.txt","apple",function(err,data){
res.end(data);
})
})
server.listen(3000);
console.log("添加成功");//可在浏览器中访问
appendfile.js
var fs = require("fs");
fs.