7月29日-登入代码

user = 'stoneman'
passwd = '123456'
for i in range(10):
    if i< 3:
        name = input('username:')
        password =input('password:')
        if user == name and passwd ==password:
            print('Welcome login')
        else:
            print('invalid username or password')

    else:
        print('over! you have tried to three times! ')
        break