• https://www.cnblogs.com/zhang1f/p/13890979.html
• https://www.babeljs.cn/
• https://babeljs.io/repl/
• https://www.babeljs.cn/repl

• https://webpack.js.org/
• https://www.npmjs.com/package/commander
• http://nodejs.cn/api/fs.html#fs_fs_writefile_file_data_options_callback
• https://juejin.cn/post/6844904080830103560

• https://www.babeljs.cn/

• https://qastack.cn/programming/29738381/how-to-publish-a-module-written-in-es6-to-npm

babel src --out-dir lib