04-python3.5-模拟三级菜单-省-县-区域--01

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

 data = {
     '北京':{
         "昌平":{
             "沙河":["Oldboy","Test"],
             "天通苑":["链家地产","我爱我家"],
             "回龙观":["北郊农场","天鸿集团"],
         },
         "朝阳":{
             "望京":["奔驰","陌陌"],
             "国贸":["CICC","HP"],
             "东直门":["Advent","飞信"],
         },
         "海淀":{
             "西三旗":["清景园","清缘里"],
             "中关村":["清华大学","北京大学"],
             "五棵松":["310医院","名仕医院"],
         },
     },
     '山东':{
         "德州":{},
         "青岛":{},
         "济南":{},
     },
     '广东':{
         "东莞":{},
         "常熟":{},
         "佛山":{},
     },
 }
 exit_flag = False
 while not exit_flag:
     for states in data:
         print(states)
     user_choice_state = input("请输入选择的省份:>>>")
     if user_choice_state in data:
         while not exit_flag:
             for districts in data[user_choice_state]:
                 print("\t",districts)
             user_choice_district = input("请输入选择的区/县:>>>")
             if user_choice_district in data[user_choice_state]:
                 while not exit_flag:
                     for areas in data[user_choice_state][user_choice_district]:
                         print("\t\t",areas)
                     user_choice_area = input("请输入选择的地段:>>>")
                     if user_choice_area in data[user_choice_state][user_choice_district]:
                         for units_list in data[user_choice_state][user_choice_district][user_choice_area]:
                             print("\t\t\t", units_list)
                         user_choice_return = input("当前已是末端，如需返回请输入b：>>>")
                         if user_choice_return == 'b':
                             pass
                         elif user_choice_return == 'q':
                             exit_flag = True
                     if user_choice_area == 'b':
                         break
                     elif user_choice_area == 'q':
                         exit_flag = True
             if user_choice_district == 'b':
                 break
             elif user_choice_district == 'q':
                 exit_flag = True