auto save

binary_search.py

-# 使用二分查找法，找出9和20在列表里面的索引
-num=18
-num_list = [1, 3, 5, 8, 11, 15, 17, 18, 20, 21]
+from random import randint
+num=randint(0,90)
+num_list = [1,1,2,3,5,8,13,21,34,55,89]
 low=0
 low=0
 high=len(num_list)-1
 high=len(num_list)-1
 while low<=high:
 while low<=high: