1. [Web technology for developers](https://developer.mozilla.org/en-US/docs/Web) 2. [windows CMD1](https://blog.csdn.net/qq_38199187/article/details/84642491?depth_1-utm_source=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-5&utm_source=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-5) 3. [windows CMD2](https://baike.baidu.com/item/%E6%89%B9%E5%A4%84%E7%90%86/1448600?fr=aladdin)