#!/usr/bin/env python
# -*- coding:utf-8 -*-
# Author：Huajia
# meum 菜单，定义一个名为meum的菜单
meum = {
"北京":{
"朝阳":{
"国贸":["建外soho","嘻嘻"],
"奥林匹克公园":["鸟巢","水立方"],
"十八里店":["王村路","东方盛泽之家"]
},
"海淀":{
"上地":["上地三街","上地五街"],
"菊园":["奔驰","宝马"]
}
},
"江苏":{
"苏州":{},
"宿迁":{},
"南京":{}
},
"河北":{
"沧州":{},
"承德":{},
"石家庄":{}
}
}
while not False:
for m1 in meum:
print(m1)
choice1 = input("选择进入菜单（按q退出系统）：")
if choice1 in meum:
while not False:
for m2 in meum[choice1]:
print("\t",m2)
choice2 = input("选择进入菜单（按q退出系统，b返回上级菜单）：")
if choice2 in meum[choice1]:
while not False:
for m3 in meum[choice1][choice2]:
print("\t\t",m3)
choice3 = input("选择进入菜单（按q退出系统，b返回上级菜单）：")
if choice3 in meum[choice1][choice2]:
while not False:
for m4 in meum[choice1][choice2][choice3]:
print("\t\t\t",m4)
choice4 = input("最后一层菜单（按q退出系统，b返回上级菜单）：")
if choice4 == 'q':
exit()
elif choice4 == 'b':
break
if choice3 == 'q':
exit()
elif choice3 == 'b':
break
if choice2 == 'q':
exit()
elif choice2 == 'b':
break
if choice1 == 'q':
exit()
else:
print("输入有误！请重新输入！")
