Update 0216.组合总和III.md

Author: lewiseng

problems/0216.组合总和III.md

@@ -367,7 +367,7 @@ class Solution:
 
     def backtracking(self, targetSum, k, currentSum, startIndex, path, result):
         if currentSum > targetSum:  # 剪枝操作
-            return  # 如果path的长度等于k但currentSum不等于targetSum，则直接返回
+            return  # 如果currentSum已经超过targetSum，则直接返回
         if len(path) == k:
             if currentSum == targetSum:
                 result.append(path[:])