Basic javascript:
angualrjs:
Split: https: //blog.csdn.net/ying422/article/details/45564245
Total: https: //www.jb51.net/article/129617.htm
Deletions change search table: https: //blog.csdn.net/weixin_40321535/article/details/78818574
angular basics: https: //blog.csdn.net/AbbyDream/article/details/59120181