# -*- coding:utf-8 -*-# 1.定义menu
menu = {'北京': {'海淀': {'五道口': {'soho': {'soho'},'网易': {},'google': {}},'中关村': {'爱奇艺': {},'汽车之家': {},'youku': {},},'上地': {'百度': {},},},'昌平': {'沙河': {'老男孩': {},'北航': {},},'天通苑': {},'回龙观': {},},'朝阳': {},'东城': {},},'上海': {'闵行': {"人民广场": {'炸鸡店': {}}},'闸北': {'火车战': {'携程': {}}},'浦东': {},},'山东': {},
}while True:# 2.打印menu_1for item in menu:print(item)# 3.用户输入choicechoice_1 = input("请输入你的选择1 q退出 >:").strip()# 4.判断输入if choice_1 in menu.keys():# print('ok')while True:for item in menu[choice_1]:print('\t', item)choice_2 = input("\t请输入你的选择2 q退出|b返回 >:").strip()if choice_2 in menu[choice_1].keys():# print('ok')while True:for item in menu[choice_1][choice_2]:print('\t', item)choice_3 = input("\t\t请输入你的选择3 q退出|b返回 >:").strip()if choice_3 in menu[choice_1][choice_2].keys():while True:for item in menu[choice_1][choice_2][choice_3]:print('\t\t\t', item)choice_4 = input("\t\t\t请输入你的选择4 q退出|b返回 >:").strip()if choice_4 in menu[choice_1][choice_2][choice_3].keys():while True:print('\t\t\t\t', menu[choice_1][choice_2][choice_3].get(choice_4))choice_5 = input('\t\t\t\t你已经到底部了 q退出|b返回: ').strip()if choice_5 == 'q':print("------bye bye----")exit()elif choice_5 == 'b':breakelse:print("\t\t\t\t输入有误，请重新输入")elif choice_4 == 'b':breakelse:print("\t\t\t输入有误，请重新输入")elif choice_3 == 'q':print("------bye bye----")exit()elif choice_3 == 'b':breakelse:print("\t\t输入有误，请重新输入")elif choice_2 == 'q':print("------bye bye----")exit()elif choice_2 == 'b':breakelse:print("\t输入有误，请重新输入")elif choice_1 == 'q':print("------bye bye----")exit()else:print("输入有误，请重新输入")