Old boy Python3.5 training first week homework

One, blog:

Second, edit the login interface

1. Enter User name password

2. Show welcome message after successful authentication

3. Lock after entering three times

   
   

   
   

Three, multi-level menu

1. Level three Menu

2. Select to go to the respective sub-menu

3. Required Knowledge points: List, dictionary

4. You can exit to the previous menu at any time
   

Job Two:

I wrote it by myself:

#!/usr/bin/env python#-*-coding=utf-8 -*-#AUTHOR:d uwentaousername = [' Duwentao ', ' Liuxiaohui ']   #存储用户名password  = [' 123456 ', ' 456789 ']      # Store the corresponding password locking = []         #用于锁定n  = 0         #计算输入了几次while  true:    username = input (' Please enter user name: ')     if UserName not in locking:         if UserName in username:             password = input (' Please enter your password: ')              if password == password[username.index (username)]:                 print  (' login successful ')          &nBsp;       exit ()              else:                 n = n+1                 if n == 3:                     locking.append (UserName)                  print  (' Username or password error, Login failed ')          else:             password = input (' Please enter your password: ')              print  ("User name or password error, Login failed")     else:         print  ("The user has been locked down")

Operation Result:

Job Three:

Cond

Old boy Python3.5 training first week homework