Day1作业---登录接口及多级菜单

 #！/usr/bin/env python
 # -*- coding:utf-8 -*-
 # Author:Ma Qing

 data = { "山东" :{
             "济南" :{
                 "济南市" :{
                     "市中区" :{},
                     "历下区" :{},
                     "天桥区" :{},
                     "槐荫区" :{},
                     "历城区" :{},
                     "长清区" :{},
                 },
                 "章丘市" :{},
             },
             "青岛" :{
                 "青岛市" :{
                     "市南区" :{},
                     "市北区" :{},
                     "城阳区" :{},
                     "四方区" :{},
                     "李沧区" :{},
                     "黄岛区" :{},
                     "崂山区" :{},
                 },
                 "胶南市" :{},
                 "胶州市" :{},
                 "平度市" :{},
                 "莱西市" :{},
                 "即墨市" :{},
             },
             "烟台" :{
                 "烟台市" : {
                     "芝罘区" :{},
                     "莱山区" :{},
                     "开发区" :{},
                     "福山区" :{},
                     "高新区" :{},
                     "牟平区" :{},
                 },
                 "招远市" : {},
                 "龙口市" : {},
                 "莱州市" : {},
                 "蓬莱市" : {},
             },
             "潍坊" :{},
             "淄博" :{},
             "滨州" :{},
             "济宁" :{},
             "枣庄" :{},
         },
          "北京" :{},
          "上海" :{},
 }
 exit_flag = False
 while not exit_flag:
     for i in data:
         print(i)

     choice = input("选择进入>>:")
     if choice in data:
         while not exit_flag:
             for j in data[choice]:
                 print("\t",j)
             choice2 = input("选择进入>>:")
             if choice2 in data[choice]:
                     while not exit_flag:
                         for k in data[choice][choice2]:
                             print("\t",k)
                         choice3 = input("选择进入3:")
                         if choice3 in data[choice][choice2]:
                             for v in data[choice][choice2][choice3]:
                                 print("\t\t",v)
                             choice4 = input("最后一层,按b返回！")
                             if choice4 == "b":
                                 pass
                             elif choice4 == "q":
                                 exit_flag = True
                         if choice3 == "b":
                             break
                         elif choice3 == "q":
                             exit_flag = True
             if choice2 == "b":
                 break
             elif choice2 == "q":
                 exit_flag = True

三级菜单初版

作业一：编写登录接口

• 输入用户密码
• 认证成功后显示欢迎信息
• 输错三次后锁定

作业二：多级菜单

• 三级菜单
• 可一次选择进入各子菜单
• 所需新知识点：列表、字典

 count = 0
 exit_flag = False
 _username = input("请输入用户名：")
 lock_file = open("account_lock","r+")
 lock_list = lock_file.readlines()
 for lock_line in lock_list:
     if _username == lock_line.strip():      #删除空行
        print("账号已被锁定！")
        break                                #跳出for。。
 else:
      user_file = open("account","r")
      user_list = user_file.readlines()             #这里要用.readlines()
      for user_line in user_list:
          username,password=user_line.split(",")     #分割赋值
          if _username == username :
             while not exit_flag:
                 if count <3:
                     _password = input("请输入密码：")
                     if _password == password:
                         print("登录成功！")
                         exit_flag = True
                         break          #终止for循环
                     else:
                         print("账号或密码错误，请重新登录！")
                         count +=1
                     user_file.close()
                 else:
                     print("账号已被锁定")
                     lock_file.write("\n")
                     lock_file.write(_username)
                     exit_flag = True
          else:
               print("账号不存在！")

登录接口初版

 #！/usr/bin/env python
 # -*- coding:utf-8 -*-
 # Author:Ma Qing

 data = { "山东" :{
             "济南" :{
                 "济南市" :{
                     "市中区" :{},
                     "历下区" :{},
                     "天桥区" :{},
                     "槐荫区" :{},
                     "历城区" :{},
                     "长清区" :{},
                 },
                 "章丘市" :{},
             },
             "青岛" :{
                 "青岛市" :{
                     "市南区" :{},
                     "市北区" :{},
                     "城阳区" :{},
                     "四方区" :{},
                     "李沧区" :{},
                     "黄岛区" :{},
                     "崂山区" :{},
                 },
                 "胶南市" :{},
                 "胶州市" :{},
                 "平度市" :{},
                 "莱西市" :{},
                 "即墨市" :{},
             },
             "烟台" :{
                 "烟台市" : {
                     "芝罘区" :{},
                     "莱山区" :{},
                     "开发区" :{},
                     "福山区" :{},
                     "高新区" :{},
                     "牟平区" :{},
                 },
                 "招远市" : {},
                 "龙口市" : {},
                 "莱州市" : {},
                 "蓬莱市" : {},
             },
             "潍坊" :{},
             "淄博" :{},
             "滨州" :{},
             "济宁" :{},
             "枣庄" :{},
         },
          "北京" :{},
          "上海" :{},
 }
 exit_flag = False
 while not exit_flag:
     for i in data:
         print(i)

     choice = input("选择进入>>:")
     if choice in data:
         while not exit_flag:
             for j in data[choice]:
                 print("\t",j)
             choice2 = input("选择进入>>:")
             if choice2 in data[choice]:
                     while not exit_flag:
                         for k in data[choice][choice2]:
                             print("\t",k)
                         choice3 = input("选择进入3:")
                         if choice3 in data[choice][choice2]:
                             for v in data[choice][choice2][choice3]:
                                 print("\t\t",v)
                             choice4 = input("最后一层,按b返回！")
                             if choice4 == "b":
                                 pass
                             elif choice4 == "q":
                                 exit_flag = True
                         if choice3 == "b":
                             break
                         elif choice3 == "q":
                             exit_flag = True
             if choice2 == "b":
                 break
             elif choice2 == "q":
                 exit_flag = True

三级菜单初版