开始学Python – 延时笔记

很久没发博客了，最近在学Python玩。贴一波代码：《基本登录系统》
UserList ={'admin':'adminp','user1':'passw1','user2':'passw2'}


def f_u(user):

  if user in UserList:

    return(0)

  else:

    return(1)
def check(user,passwrold):

  if f_u(user) != 1:

    if passwrold == UserList[user]:

      return(0)

    else:

      return(1)
def lock():

  try:

    lock = open("lock.l",mode="x")

    lock.close()

  except IOError:

    print('错误次数太多禁止登录！')

    exit()
lock()
print('****登录系统*****')

i = 3

user = input('用户名:')
while f_u(user) == 1:

  print('该用户不存在！请重新输入！')

  user = input('用户名:')
passwrold = input('密码:')

while check(user,passwrold) == 1: i -= 1 if i < 0: lock() print('密码错误！你还有%s次机会！'%(i)) passwrold = input('密码:') print('Welcome!')

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