Delete 复试笔记/红果研模拟题代码 directory

部分修改
This commit is contained in:
Sheldoer
2021-04-06 09:25:30 +08:00
committed by GitHub
parent 120cdcf97c
commit 4024ea453a
9 changed files with 0 additions and 72 deletions

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数据库浪费精力开始
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a=input("请输入一个不小于100的数:")
try:
x=int(a)
if x>=100:
print(x//100)
else:
print("请输入一个不小于100的数.")
except BaseException:
print("输入错误")

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def demo(t):
print([1])
print([1,1])
line=[1,1]
for i in range(2,t):
r=[]
for j in range(0,len(line)-1):
r.append(line[j]+line[j+1])
line=[1]+r+[1]
print(line)
demo(10)

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import math
def Isprime(n):
m=int(math.sqrt(n))+1
#print(m)
for i in range(2,m):
if n%i==0:
return False
return True
def demo(n):
if isinstance(n,int)and n>0 and n%2==0:
for i in range(3,int(n/2)+1):
if i%2==1 and Isprime(i) and Isprime(n-i):
print(i,'+',n-i,'=',n)
demo(50)

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filename='demo6.py'
with open(filename,'r')as fp:
lines=fp.readlines()
lines=[line.rstrip()+''*(100-len(lines))+'#'+str(index)+'\n' for index,line
in enumerate(lines)]
with open(filename[:-3]+'_new.py','w')as fp:
fp.writelines(lines)

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import pickle
f=open('sample.dat','rb')
n=pickle.load(f)
i=0
while i<n:
x=pickle.load(f)
print(x)
i=i+1
f.close

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file=open('1.txt','r',encoding='gb18030')
juzi=file.readlines()
print(x for x in juzi)
file.close()

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import pdb
n=37
pdb.set_trace()
for i in range(2,n):
if n%i==0:
print('No')
break
else:
print('Yes')