diff --git a/problems/0028.实现strStr.md b/problems/0028.实现strStr.md
index 271822dc..84ce7750 100644
--- a/problems/0028.实现strStr.md
+++ b/problems/0028.实现strStr.md
@@ -9,7 +9,7 @@
 
 # 28. 实现 strStr()
 
-[力扣题目链接](https://leetcode.cn/problems/implement-strstr/)
+[力扣题目链接](https://leetcode.cn/problems/find-the-index-of-the-first-occurrence-in-a-string/)
 
 实现 strStr() 函数。
 
@@ -699,7 +699,7 @@ class Solution(object):
             if haystack[i:i+n]==needle:
                 return i
         return -1    
-```	
+```
 ```python
 // 方法一
 class Solution: