python編寫一個三級while的循環菜單

1.定義字典，字典裏面嵌套字典，內嵌字典的值為列表。

思路：

湖北省的市：字典中的
定義3個字典，用於存儲

{序列-鍵：市名}

shiqu_dir = {}

{序列-鍵：縣}

xian_dir ={}

{序列-鍵：街道}

jiedao_dir = {}

函數將序列和鍵一一對應。

for number,key in enumerate(Hbei_map.keys())  獲取序列鍵和市名存儲到 市名字典

用一個列表 chose = [] 來存儲所選擇的市--縣程-街道

chose[0],chose[1],chose[2]最後使用切片返回

中間輸入全部使用的判斷方式for循環： for k,v in xxx.items():
 

　　　　　　　　　　　　　　　　　　　　　if input == k：
讓用戶只能輸入序列中的數字。使用判斷語句：

　　if int(input) not in 字典.keys():
    　　print("您輸入了非法的序列,請輸入一下序列 {}".format(shiqu_list))

# -*- coding: utf-8 -*-
__author__ = ‘hujianli‘
import sys
Hbei_map = {
    "武漢市":{
        "江岸區":["上海街","大智街","一元街","車站街","四唯街","永清街","球場街","西馬街","臺北街","
 
勞動街","花橋街","後湖街","諶家磯街"],
         "硚口區":["易家墩街道","韓家墩街道","宗關街道","漢水橋街道","寶豐街道","榮華街道","崇仁街道","漢中街道"],
         "武昌區":["積玉橋街道","楊園街道","徐家棚街道","新河街道"]
    },

    "荊州市":{
        "沙市區":["黃石港","崇文街道","解放路街道"],
        "荊州區":["城南街道","西城街道","東城街道","馬山鎮","川店鎮"],
        "松滋市":["新江口鎮","南海鎮","八寶鎮","陳店鎮"],
        
 
"公安縣":["鬥湖堤鎮","埠河鎮","楊家廠鎮","斑竹垱鎮"],
        "監利縣":["容城鎮","白螺鎮","朱河鎮"]

    },
    "孝感市":{
        "孝南區":["肖港鎮","書院街道","車站街道","新華街道"],
        "應城市":["城中街道","城北街道","楊河鎮","三合鎮"],
        "安陸市":["李店鎮","巡店鎮","雷公鎮","陳店鄉"],

    },
}
# print(Hbei_map["孝感市"]["應城市"])
shiqu_dir = {}
xian_dir ={}
jiedao_dir = {}

def jiance(name):
    if len(name) == 0:
        sys.exit("\033[31;1m選擇不能為空，清重新輸入~~\033[0m")
    elif shiqu == "quit" or shiqu == "exit":
        sys.exit("\033[31;1m 退出程序，三級菜單退出~~ \033[0m")
    else:
        return True

print("==============================================================================================================")
print("湖北省下面的市區如下： ")
for number,key in enumerate(Hbei_map.keys()):
    print(str(number+1) + ": " + str(key))
    shiqu_dir[number+1] = key

chose = []
shiqu_list = [x+1 for x in range(len(shiqu_dir.keys()))]

while True:
    print("==========================================================================================================")
    shiqu = input("請輸入您要查詢的市區所對應的序列號,輸入exit或者quit自動會退出.：")
    jiance(shiqu)
    if int(shiqu) not in shiqu_dir.keys():
        print("您輸入了非法的序列,請輸入一下序列 {}".format(shiqu_list))
    else:
        for keys,vlaue in shiqu_dir.items():
            if int(shiqu) == keys:
                chose = []
                chose.append(vlaue)
                print("================================================================================================")
                print("該市區下面的縣級市或者片區域，縣城列表如下：")

                for number,keys_xian in enumerate(Hbei_map[vlaue].keys()):
                    print(str(number+1)+ ":" + str(keys_xian))
                    xian_dir[number+1] = keys_xian

                while True:
                    print("=============================================================================================")
                    xian = input("請輸入要查詢的縣城所對應的序列號，quit/exit退出： ")
                    jiance(xian)
                    xian_list = [x+1 for x in range(len(xian_dir.keys()))]
                    if int(xian) not in xian_dir.keys():
                         print("您輸入了非法的序列,請輸入一下序列 {}".format(xian_list))
                    else:
                        for k,v in xian_dir.items():
                            if int(xian) == k:
                                chose.append(v)

                        jiedao_li = Hbei_map[chose[0]][chose[1]]
                        for k,v in enumerate(jiedao_li):
                            print(str(k+1) + ": " + str(v))
                            jiedao_dir[k+1] = v

                        while True:
                            print("=====================================================================================")
                            jiedao = input("請輸入街道所對應的序列號 退出請輸入quit/exit： ")
                            jiance(jiedao)
                            jiedao_list = [x+1 for x in range(len(jiedao_dir.keys()))]
                            if int(jiedao) not in jiedao_dir.keys():
                                print("您輸入了非法的序列,請輸入一下序列 {}".format(jiedao_list))
                            else:
                                for k,v in jiedao_dir.items():
                                    if int(jiedao) == k:
                                        chose.append(v)
                                        print("=================================================================================")
                                        print("\033[35;1m你選擇的市：%s 縣城是：%s 街道是：%s\033[0m"%(chose[0],chose[1],chose[2]))
                                        print("===================================================================================")
                            break
                        break
        break

python 三級菜單 while循環三次，湖北省市-縣-街道的選擇，3個while的循環 -day2