三级菜单

Posted 2020-10-08

#!/usr/bin/evn python
# -*- coding:utf-8 -*-
# Author: Aron
import sys,os
sheng = {‘广东省‘:{‘深圳市‘:[‘宝安区‘,‘罗湖区‘,‘龙岗区‘],‘广州市‘:[‘兰云真‘,‘天河区‘,‘白云区‘]},‘湖南省‘:{‘邵阳市‘:[‘巨口铺‘,‘龙溪铺‘,‘利平乡‘],‘长沙市‘:[‘芙蓉区‘,‘天星区‘,‘雨花区‘]} }
state = False
while not state:
    for i in sheng:
        print(i)
    sr = input("选择省市,或者退出(Q)")
    if sr in sheng:
        print(sheng[sr].keys())
        sr1 = input("选择省市,或者退出(Q)")
        if sr1 in sheng[sr]:
            print(sheng[sr][sr1])
            sr2 = input("选择返回(B),或者退出(Q)")
            if sr2 == ‘B‘:
                continue
            else:
                sys.exit()
        elif sr1 == ‘B‘:
            continue
        else:
            sys.exit()
    else:
        sys.exit()