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  • 三级菜单

    region_list={"河北省":{"石家庄":["新乐","新集","赵县"],"保定":["唐县","满城","涞源"]},
                  "山西":{"太原":["小店区","杏花岭区"],"大同":["大同县","西花园"]}}
    
    def the_menu():
        print("*" * 10 + "欢迎来到地区查询系统" + "*" * 10)
        for i in region_list:
    
            print(i)
        print("-"*40)
        while True:
            the_input=input("输入q:=返回上级,输入a:=退出,输入地区:=查看下级信息:")
            if the_input=="a":
                break
            elif the_input=="河北省":
                for k in region_list["河北省"]:
                    print(k)
                while True:
                    the__input = input("返回上级输入:q请输入地区名称:")
                    if the__input=="保定":
                        for i in region_list["河北省"]["保定"]:
                            print(i)
                    elif the__input=="石家庄":
                        for i in region_list["河北省"]["石家庄"]:
                            print(i)
                    elif the__input=="q":
                        break
            elif the_input=="山西":
                for i in region_list["山西"]:
                    print(i)
                    while True:
                        the__input = input("请输入地区名称:")
                        if the__input == "太原":
                            for i in region_list["山西"]["太原"]:
                                print(i)
                        elif the__input == "大同":
                            for i in region_list["山西"]["大同"]:
                                print(i)
                        elif the__input == "q":
                            break
    
            else:
                break
    
    the_menu()
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  • 原文地址:https://www.cnblogs.com/zang963469010/p/6111165.html
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