很好的位运算文章

转载地址：https://blog.csdn.net/hzf0701/article/details/117359478?utm_medium=distribute.pc_relevant.none-task-blog-2~default~baidujs_title~default-0-117359478-blog-101314556.pc_relevant_multi_platform_whitelistv1&spm=1001.2101.3001.4242.1&utm_relevant_index=3