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1.4 流程控制 #13

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request101 opened this issue Jun 3, 2019 · 0 comments

request101 commented Jun 3, 2019 •

edited

Username=str(input('请输入用户名:'))
password=int(input('请输入密码:'))
if(Username=='seven'):
    if(password==123):
        print("登陆成功!")
    else:
        print("登陆失败！")

i=2
sum=0
while(i<=100):
    if(i%2==0):
        sum+=i
    else:
        sum-=i
    i+=1
print(sum)

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