save project

binary_search.py

 # 使用二分查找法，找出9和20在列表里面的索引
 num_list = [1, 3, 5, 8, 11, 15, 17, 18, 20, 21]
-mid = (low+high) //2
+mid = (low + high) //2
 guess = num_list[mid]
 if guess == num:
     print("找到了")