python第一天作业：字典

 

作业三：多级菜单

• 三级菜单
• 可依次选择进入各子菜单
• 所需新知识点：列表、字典

break_flag = False
count = 0
while not break_flag:
    print("111111层")
    while not  break_flag:
        print("222222222层")
        while not  break_flag:
            print("3333333层")
            count += 1
            if count > 10:
                break_flag =True


print("keep")

menu = {
    '浙江':{
        '杭州':{
            '西湖':{
                '西溪',
                '三墩'},
            '滨江':{'滨和', '高新'}
},
        '丽水':{
            '龙泉':{'宝剑', '瓷器'},
            '青田':{'石雕', '华侨'},
            '缙云':{'烧饼', '木雕'},
    },
},
    '山东':{
        '烟台':{'大海', '日照'},
        '青岛':{'平度', '黄岛'},
        '东营':{'利津', '垦利'}
},
    '广东':{
        '深圳':{'南山', '福田'},
        '梅州':{'五华', '兴宁'},
        '佛山':{'三水', '桂城'}
}
}

ext_flage= False
while not ext_flage:
    for lev1 in menu:
        print(lev1)
    choice = input("lev1>>:").strip()
    if len(choice) == 0: continue
    if choice == "b":break
    if choice == "q":
        ext_flage = True
    if choice in menu[choice]:
        while not  ext_flage:
            for lev2 in menu[choice]:
                print(lev2)
            choice2 = input("lev2>>:").strip()
            if len(choice2) == 0 :continue
            if choice2 == "b":break
            if choice2 == "q":
                ext_flage = True
            if choice2 in menu[choice][choice2]:
                while not ext_flage:
                    for lev3 in menu[choice][choice2]:
                        print(lev3)
                    choice3 = input("lev3>>:").strip()
                    if len(choice3)== 0: continue
                    if choice3 =="b":break
                    if choice3 =="q":
                        ext_flage = True
                    if choice3 in menu[choice][choice2][choice3]:
                        while not  ext_flage:
                            for lev4 in [choice][choice2][choice3]:
                                print(lev4)
                            choice4 = input("lev4>>:").strip()
                            if len(choice4) == 0 : continue
                            if choice3 == "b" :break
                            if choice3 == "q" :
                                ext_flage = True
　　　　　　　　　　　　　　　　　　　　continue