Commit 9b2c1670 by BellCodeEditor

save project

parent adaf6f8a
Showing with 14 additions and 0 deletions
......@@ -7,3 +7,16 @@ num = random.choice(alist)
# 请完善二分查找函数binary_search(),查找出num在列表alist里面的索引位置
def binary_search(alist,num):
low=0
high=len(alist)-1
while low<=high:
mid =low+high//2
guess=alist[mid]
if guess ==num:
return mid
elif guess<num:
low=mid+1
else:
high=mid-1
ruturn=binary_search(alist,12)
print(ruturn)
\ No newline at end of file
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