Update 0714.买卖股票的最佳时机含手续费（动态规划）.md

problems/0714.买卖股票的最佳时机含手续费（动态规划）.md

@@ -139,7 +139,17 @@ public int maxProfit(int[] prices, int fee) {
 ```
 
 Python：
-
+```python
+class Solution:
+    def maxProfit(self, prices: List[int], fee: int) -> int:
+        n = len(prices)
+        dp = [[0] * 2 for _ in range(n)]
+        dp[0][0] = -prices[0] #持股票
+        for i in range(1, n):
+            dp[i][0] = max(dp[i-1][0], dp[i-1][1] - prices[i])
+            dp[i][1] = max(dp[i-1][1], dp[i-1][0] + prices[i] - fee)
+        return max(dp[-1][0], dp[-1][1])
+```
 
 Go：