Update binary_op.md

eadst · web-flow · commit 6cd6432d371b · 2021-05-02T23:12:13.000+08:00
Add a reference
diff --git a/data_structure/binary_op.md b/data_structure/binary_op.md
@@ -200,3 +200,7 @@ class Solution:
 - [ ] [counting-bits](https://leetcode-cn.com/problems/counting-bits/)
 - [ ] [reverse-bits](https://leetcode-cn.com/problems/reverse-bits/)
 - [ ] [bitwise-and-of-numbers-range](https://leetcode-cn.com/problems/bitwise-and-of-numbers-range/)
+
+## 参考链接
+
+- [ ] [一篇读懂Python中的位运算](https://www.cnblogs.com/Neeo/articles/10536202.html) 
