1 #！/usr/bin/env python 2 # -*- coding:utf-8 -*- 3 # Author:Ma Qing 4 5 data = { "山东" :{ 6 "济南" :{ 7 "济南市" :{ 8 "市中区" :{}, 9 "历下区" :{}, 10 "天桥区" :{}, 11 "槐荫区" :{}, 12 "历城区" :{}, 13 "长清区" :{}, 14 }, 15 "章丘市" :{}, 16 }, 17 "青岛" :{ 18 "青岛市" :{ 19 "市南区" :{}, 20 "市北区" :{}, 21 "城阳区" :{}, 22 "四方区" :{}, 23 "李沧区" :{}, 24 "黄岛区" :{}, 25 "崂山区" :{}, 26 }, 27 "胶南市" :{}, 28 "胶州市" :{}, 29 "平度市" :{}, 30 "莱西市" :{}, 31 "即墨市" :{}, 32 }, 33 "烟台" :{ 34 "烟台市" : { 35 "芝罘区" :{}, 36 "莱山区" :{}, 37 "开发区" :{}, 38 "福山区" :{}, 39 "高新区" :{}, 40 "牟平区" :{}, 41 }, 42 "招远市" : {}, 43 "龙口市" : {}, 44 "莱州市" : {}, 45 "蓬莱市" : {}, 46 }, 47 "潍坊" :{}, 48 "淄博" :{}, 49 "滨州" :{}, 50 "济宁" :{}, 51 "枣庄" :{}, 52 }, 53 "北京" :{}, 54 "上海" :{}, 55 } 56 exit_flag = False 57 while not exit_flag: 58 for i in data: 59 print(i) 60 61 choice = input("选择进入>>:") 62 if choice in data: 63 while not exit_flag: 64 for j in data[choice]: 65 print(" ",j) 66 choice2 = input("选择进入>>:") 67 if choice2 in data[choice]: 68 while not exit_flag: 69 for k in data[choice][choice2]: 70 print(" ",k) 71 choice3 = input("选择进入3:") 72 if choice3 in data[choice][choice2]: 73 for v in data[choice][choice2][choice3]: 74 print(" ",v) 75 choice4 = input("最后一层,按b返回！") 76 if choice4 == "b": 77 pass 78 elif choice4 == "q": 79 exit_flag = True 80 if choice3 == "b": 81 break 82 elif choice3 == "q": 83 exit_flag = True 84 if choice2 == "b": 85 break 86 elif choice2 == "q": 87 exit_flag = True
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
1 count = 0 2 exit_flag = False 3 _username = input("请输入用户名：") 4 lock_file = open("account_lock","r+") 5 lock_list = lock_file.readlines() 6 for lock_line in lock_list: 7 if _username == lock_line.strip(): #删除空行 8 print("账号已被锁定！") 9 break #跳出for。。 10 else: 11 user_file = open("account","r") 12 user_list = user_file.readlines() #这里要用.readlines() 13 for user_line in user_list: 14 username,password=user_line.split(",") #分割赋值 15 if _username == username : 16 while not exit_flag: 17 if count <3: 18 _password = input("请输入密码：") 19 if _password == password: 20 print("登录成功！") 21 exit_flag = True 22 break #终止for循环 23 else: 24 print("账号或密码错误，请重新登录！") 25 count +=1 26 user_file.close() 27 else: 28 print("账号已被锁定") 29 lock_file.write(" ") 30 lock_file.write(_username) 31 exit_flag = True 32 else: 33 print("账号不存在！")
1 #！/usr/bin/env python 2 # -*- coding:utf-8 -*- 3 # Author:Ma Qing 4 5 data = { "山东" :{ 6 "济南" :{ 7 "济南市" :{ 8 "市中区" :{}, 9 "历下区" :{}, 10 "天桥区" :{}, 11 "槐荫区" :{}, 12 "历城区" :{}, 13 "长清区" :{}, 14 }, 15 "章丘市" :{}, 16 }, 17 "青岛" :{ 18 "青岛市" :{ 19 "市南区" :{}, 20 "市北区" :{}, 21 "城阳区" :{}, 22 "四方区" :{}, 23 "李沧区" :{}, 24 "黄岛区" :{}, 25 "崂山区" :{}, 26 }, 27 "胶南市" :{}, 28 "胶州市" :{}, 29 "平度市" :{}, 30 "莱西市" :{}, 31 "即墨市" :{}, 32 }, 33 "烟台" :{ 34 "烟台市" : { 35 "芝罘区" :{}, 36 "莱山区" :{}, 37 "开发区" :{}, 38 "福山区" :{}, 39 "高新区" :{}, 40 "牟平区" :{}, 41 }, 42 "招远市" : {}, 43 "龙口市" : {}, 44 "莱州市" : {}, 45 "蓬莱市" : {}, 46 }, 47 "潍坊" :{}, 48 "淄博" :{}, 49 "滨州" :{}, 50 "济宁" :{}, 51 "枣庄" :{}, 52 }, 53 "北京" :{}, 54 "上海" :{}, 55 } 56 exit_flag = False 57 while not exit_flag: 58 for i in data: 59 print(i) 60 61 choice = input("选择进入>>:") 62 if choice in data: 63 while not exit_flag: 64 for j in data[choice]: 65 print(" ",j) 66 choice2 = input("选择进入>>:") 67 if choice2 in data[choice]: 68 while not exit_flag: 69 for k in data[choice][choice2]: 70 print(" ",k) 71 choice3 = input("选择进入3:") 72 if choice3 in data[choice][choice2]: 73 for v in data[choice][choice2][choice3]: 74 print(" ",v) 75 choice4 = input("最后一层,按b返回！") 76 if choice4 == "b": 77 pass 78 elif choice4 == "q": 79 exit_flag = True 80 if choice3 == "b": 81 break 82 elif choice3 == "q": 83 exit_flag = True 84 if choice2 == "b": 85 break 86 elif choice2 == "q": 87 exit_flag = True