diff --git a/problems/0344.反转字符串.md b/problems/0344.反转字符串.md
index 775cfc58..03c82767 100644
--- a/problems/0344.反转字符串.md
+++ b/problems/0344.反转字符串.md
@@ -174,6 +174,7 @@ class Solution {
 ```
 
 Python：
+（版本一） 双指针
 ```python
 class Solution:
     def reverseString(self, s: List[str]) -> None:
@@ -190,7 +191,62 @@ class Solution:
             right -= 1
        
 ```
-
+（版本二） 使用栈
+```python
+class Solution:
+    def reverseString(self, s: List[str]) -> None:
+        """
+        Do not return anything, modify s in-place instead.
+        """
+        stack = []
+        for char in s:
+            stack.append(char)
+        for i in range(len(s)):
+            s[i] = stack.pop()
+       
+```
+（版本三） 使用range
+```python
+class Solution:
+    def reverseString(self, s: List[str]) -> None:
+        """
+        Do not return anything, modify s in-place instead.
+        """
+        n = len(s)
+        for i in range(n // 2):
+            s[i], s[n - i - 1] = s[n - i - 1], s[i]
+       
+```
+（版本四） 使用reversed
+```python
+class Solution:
+    def reverseString(self, s: List[str]) -> None:
+        """
+        Do not return anything, modify s in-place instead.
+        """
+        s[:] = reversed(s)
+       
+```
+（版本五） 使用切片
+```python
+class Solution:
+    def reverseString(self, s: List[str]) -> None:
+        """
+        Do not return anything, modify s in-place instead.
+        """
+        s[:] = s[::-1]
+       
+```
+（版本六） 使用列表推导
+```python
+class Solution:
+    def reverseString(self, s: List[str]) -> None:
+        """
+        Do not return anything, modify s in-place instead.
+        """
+        s[:] = [s[i] for i in range(len(s) - 1, -1, -1)]
+       
+```
 Go：
 ```Go
 func reverseString(s []byte) {