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
-import random
+form t
\ No newline at end of file
-
-alist=[]
-for i in range(1,101):
-    alist.append(i)
-num=random.choice(alist)
-def binary_search(alist,num):
-bingo_num=20
-num_list = [1, 3, 5, 8, 11, 15, 17, 18, 20, 21]
-low=0
-high=len(num_list)-1
-
-while low<=high:
-    mid=(low+high )//2
-    guss_num=num_list[mid]
-    if guss_num==bingo_num:
-        print("找到了，它在列表里的索引是:"，mid)
-        break
-    elif guss_num<bingo_num:
-        low=mid+1
-    elif guss_num>bingo_num:
-        high=mid-1