python练习题

n = 0
while n<10:
    n = n+1
    if n==7:
        pass
    else:
        print(n)
print("end")

n=0
while n<100:
    n=n+1
    if n%2==0:
        pass
    else:
        print(n)
print("end")

n=0
while n<100:
    n=n+1
    if n%2==0:
        print(n)    
print("end")

n = 0
m = 1
while m < 101:
    n = n + m
    m = m + 1

print(n)

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

n=input("请输入账号")
m=input("请输入密码")
t=0
while t<4:
    if n==‘qwe‘ & m==‘123‘:
        print("登录成功")
    else:
        print("登录失败，请重新输入")
        t=t+1