build

chapter_sorting/insertion_sort.md

@@ -63,12 +63,12 @@ comments: true
 === "Python"
 
     ```python title="insertion_sort.py"
-    def insertion_sort(nums):
+    def insertion_sort(nums: List[int]) -> None:
         """ 插入排序 """
         # 外循环：base = nums[1], nums[2], ..., nums[n-1]   
         for i in range(1, len(nums)):
-            base = nums[i]
-            j = i - 1
+            base: int = nums[i]
+            j: int = i - 1
             # 内循环：将 base 插入到左边的正确位置
             while j >= 0 and nums[j] > base:
                 nums[j + 1] = nums[j]  # 1. 将 nums[j] 向右移动一位