Nodejs tutorial 1

复习

安装包的指令

npm i package_name
npm i package_name --save-dev

运行包的指令

npm run dev
npm run start
npm dev
npm start

包版本含义(e.g. 2.3.4)

2: major changes

http和fs模块

fs模块

fs.readFile(filename, encoding, callback_function);
fs.writeFile(file, data, options, callback);

http模块