python实现三级菜单代码

__author__ = 'Administrator'
#-*- coding:utf-8 -*-


memu = {
    "华南":{
        "广东":["广州市","佛山市","深圳市","东莞市"],

        "广西":["南宁市","柳州市","桂林市","北海市"],


        "海南":["海口市","三亚市","三沙市","儋州市"]

    },
    "华东":{
        "上海":["黄浦区","卢湾区","徐汇区","长宁区","普陀区"],

        "安徽":["合肥市","芜湖市","淮南市","马鞍山市"],

        "江苏":["南京市","无锡市","徐州市","常州市","苏州市"]

    },
    "华北":{
        "北京":["东城区","西城区","朝阳区","丰台区","石景山区","海淀区"],

        "山西":["太原市","大同市","阳泉市","长治市"],

        "河北":["石家庄市","唐山市","秦皇岛市","邢台市"]

    },
    "华中":{
        "湖北":["武汉市","黄石市","十堰市","十堰市"],

        "河南":["郑州市","开封市","洛阳市","平顶山市"],

        "湖南":["长沙市","株洲市","衡阳市","邵阳市"]

    },
    "西南":{
        "重庆":["万州区","涪陵区","渝中区","大渡口区"],
        "四川":["成都市","自贡市","攀枝花市","德阳市"],
        "贵州":["贵阳市","六盘水市","遵义市","安顺市"],


    },
    "特别行政区":{
        "香港":["屯门","弯仔","北角","西贡"],
        "澳门":["花地玛堂区","圣安多尼堂区","大堂区","望德堂区"],

    },
    }

jump_loop = True
while jump_loop:
    i = 0
    while i < 3:
        for k,v in enumerate(memu.keys()):
            print(k,':',v)
        choice = input('请选择地区：')
        jump_two = True
        while jump_two:
            if choice in memu:
                for a,b in enumerate(memu[choice].keys()):
                    print(a,':',b)
                two_dir = memu[choice]
                choice2 = input('请选择省：')
                for address in two_dir[choice2]:
                    print(address)
                rebak = input('是否要返回上一级目录(y/n)?')
                if rebak == '' :
                    rebak = input('是否要返回上一级目录(y/n)?')
                if rebak == 'y':
                    break
                three_dir = two_dir[choice2]
                jieguo = True
                while jieguo:
                    choice3 = input('请选择地区：')
                    if choice3 in three_dir:
                        print(choice3)
                    rebak2 = input('已经是最后地区，是否返回(y/n)?')
                    if rebak2 == 'y':
                        jieguo = False
        else:
            i += 1
            if i == 3:
                print('失败次数过多，程序已退出！')
                jump_loop = False
                break
            print('没有找到，请重新输入!')
            continue

__author__ = 'Administrator'
#-*- coding:utf-8 -*-


memu = {
    "华南":{
        "广东":["广州市","佛山市","深圳市","东莞市"],

"广西":["南宁市","柳州市","桂林市","北海市"],


"海南":["海口市","三亚市","三沙市","儋州市"]

    },
"华东":{
        "上海":["黄浦区","卢湾区","徐汇区","长宁区","普陀区"],

"安徽":["合肥市","芜湖市","淮南市","马鞍山市"],

"江苏":["南京市","无锡市","徐州市","常州市","苏州市"]

    },
"华北":{
        "北京":["东城区","西城区","朝阳区","丰台区","石景山区","海淀区"],

"山西":["太原市","大同市","阳泉市","长治市"],

"河北":["石家庄市","唐山市","秦皇岛市","邢台市"]

    },
"华中":{
        "湖北":["武汉市","黄石市","十堰市","十堰市"],

"河南":["郑州市","开封市","洛阳市","平顶山市"],

"湖南":["长沙市","株洲市","衡阳市","邵阳市"]

    },
"西南":{
        "重庆":["万州区","涪陵区","渝中区","大渡口区"],
"四川":["成都市","自贡市","攀枝花市","德阳市"],
"贵州":["贵阳市","六盘水市","遵义市","安顺市"],


},
"特别行政区":{
        "香港":["屯门","弯仔","北角","西贡"],
"澳门":["花地玛堂区","圣安多尼堂区","大堂区","望德堂区"],

},
}

jump_loop = True
while jump_loop:
    i = 0
while i < 3:
        for k,v in enumerate(memu.keys()):
            print(k,':',v)
        choice = input('请选择地区：')
        jump_two = True
        while jump_two:
            if choice in memu:
                for a,b in enumerate(memu[choice].keys()):
                    print(a,':',b)
                two_dir = memu[choice]
                choice2 = input('请选择省：')
                for address in two_dir[choice2]:
                    print(address)
                rebak = input('是否要返回上一级目录(y/n)?')
                if rebak == '' :
                    rebak = input('是否要返回上一级目录(y/n)?')
                if rebak == 'y':
                    break
three_dir = two_dir[choice2]
                jieguo = True
                while jieguo:
                    choice3 = input('请选择地区：')
                    if choice3 in three_dir:
                        print(choice3)
                    rebak2 = input('已经是最后地区，是否返回(y/n)?')
                    if rebak2 == 'y':
                        jieguo = False
        else:
            i += 1
if i == 3:
                print('失败次数过多，程序已退出！')
                jump_loop = False
                break
print('没有找到，请重新输入!')
            continue