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Files » erfenchazhao.py

UserName LastName, 01/17/2025 11:16 AM

 

def erfenchazhao(n,shu):
length=len(n)
low=1
high=length-1
while low<=high:
mid=(low+high)//2
caishu=n[mid]
if shu==caishu:
return mid
elif shu<caishu:
high=mid-1
elif shu>caishu:
low=mid+1
return False
n=[1,2,3,4,5,6,7,8,9]
shu=int(input("请输入数"))
if erfenchazhao(n,shu):
print("数在这个列表中")
else:
print('数不在这个列表中')
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