卫语句
https://blog.csdn.net/wangpaiblog/article/details/114909737
把简单的逻辑提前return 减少嵌套层数
https://blog.csdn.net/wangpaiblog/article/details/114909737
把简单的逻辑提前return 减少嵌套层数
提取公共函数
修改变量名
https://kaelzhang81.github.io/2017/06/18/%E8%AF%A6%E8%A7%A3%E5%9C%88%E5%A4%8D%E6%9D%82%E5%BA%A6/
https://blog.csdn.net/chen1415886044/article/details/105094688
https://bbs.huaweicloud.com/blogs/230948