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]
 f=0
-d=len(num_list-1)
\ No newline at end of file
+d=20
+v=len(num_list)_1
+sa=(f+d)//2
+while v>f:
+a=
\ No newline at end of file