day2

Posted 2020-10-07

#模拟三级菜单
menu = {
    ‘河南省‘: {
        ‘郑州‘: {
            ‘嵩山少林寺‘: {},
            ‘伏羲山大峡谷‘: {},
            ‘城隍庙‘: {}

        },
        ‘三门峡‘: {
            ‘天鹅湖‘: {},
            ‘函谷关‘: {},
            ‘虢国车马坑‘: {}

        },
        ‘洛阳‘: {
            ‘龙门石窟‘: {},
            ‘白马寺‘: {},
            ‘牡丹园‘: {}
        }

    },
    ‘陕西省‘: {
        ‘西安‘: {
            ‘秦始皇兵马俑‘: {},
            ‘大雁塔‘: {},
            ‘华山‘: {}

        },
        ‘汉中‘: {
            ‘武侯祠‘: {},
            ‘朱鹮生态园‘: {},
            ‘天台国家森林公园‘: {}

        },
        ‘太原‘: {
            ‘晋祠公园‘: {},
            ‘东湖醋园‘: {},
            ‘汾河公园‘: {}

        }

    },
    ‘台湾‘: {
        ‘台北‘: {
            ‘中正纪念堂‘: {},
            ‘西门町‘: {},
            ‘士林官邸‘: {}

        },
        ‘高雄‘: {
            ‘西子湾风景区‘: {},
            ‘六合夜市‘: {},
            ‘爱河‘: {}

        },
        ‘基隆‘: {
            ‘基隆屿‘: {},
            ‘奠济宫‘: {},
            ‘湖净公园‘: {}

        }

    },
    ‘海南省‘:{
        ‘海口‘: {
            ‘热带野生动植物园‘: {},
            ‘假日海滩旅游区‘: {},
            ‘仙人洞‘: {},

        },
        ‘三亚‘: {
            ‘天涯海角‘: {},
            ‘椰梦长廊‘: {},
            ‘亚龙湾热带天堂森林公园‘: {},

        },
        ‘儋州‘: {
            ‘东坡书院‘: {},
            ‘石花水洞地质公园‘: {},
            ‘鹭鸶公园‘: {},
        }

    }

}

exit_flag = False         #定义变量条件，改变条件程序结束
current_layer = menu      #current可以表示为函数的符号，也可以理解为计算机操作命令

layers = [menu]           #layers表示层次

while not exit_flag:
    for k in current_layer:
        print(k)
    choice = input(">>:").strip()
    if choice == "back":
        current_layer = layers[-1]  #输入back时，返回上级菜单
        #print(current_layer)
        layers.pop()
        #print(layers.pop())
    elif choice not  in current_layer:
        #print(‘Please inter back‘)
        continue
    else:
        layers.append(current_layer)
        current_layer = current_layer[choice]

模拟购物车

import getpass,msvcrt,sys

fruit_menu = {
‘apple‘:10,
‘car‘:100000,
‘mac‘:8000,
‘bed‘:500,
‘beef‘:30
}

count = 0
while count <= 3:
    count += 1
    in_acc = input(‘name: ‘)
    in_pwd = input(‘password: ‘)

    if in_acc == ‘dhd‘ and in_pwd == ‘123‘:
        print(‘welcome dhd !!!‘)
        buy_list = []
        while True:
            for key,item in fruit_menu.items():
            #for key,item in fruit_menu.items():
                print(‘name:{name} price:{price}‘.format(price=item,name=key))
                #print(‘name:{name} price:{price}‘.format(price=item,name=key))
            choice = input(‘商品>>: ‘).strip()
            if not choice or choice not in fruit_menu:continue
            count = input(‘购买个数>>: ‘).strip()
            if not count.isdigit():continue
            buy_list.append((choice,fruit_menu[choice],count))

            print(buy_list)

        break
    else:
        if count < 3:
            print(‘Please Input agin !‘)
        if count == 3:
            print(‘worong 3 times, Please call 110 !‘)
            break