python作业之购物车

实现一个购物车的程序

1、统计每个物品的单价和总价和数量

2、判断钱是否够

shop_house = ["小米手机：2001", "苹果手机：5330", "三星手机：4103", "华为手机：3125", "魅族手机：3973", "联想手机：222", "酷派手机：155", "退出", "买单"]
wel = "welcome to Cevin phone shopping house"
total_money = 120000
shop_car_dict = {}
iphone_num = 0
xiaomi_num = 0
sanxing_num = 0
huawei_num = 0
meizu_num = 0
lianxiang_num = 0
kupai_num = 0

while True:
    print(wel.center(80, '-'))
    for i, phone in enumerate(shop_house):
        print(i, phone)
    option = input("which phone do you want to buy?")
    if option == "0":
        per = shop_house[0].split("：")
        if total_money >= int(per[1]):
            total_money = total_money - int(per[1])
            # print('-'.center("50"))
            print("%s is in shop_car,and you money is %d" % (per[0], total_money))
            if shop_car_dict.get(per[0]):
                xiaomi_num += 1
                per_dict = {per[0]: {"总价": int(per[1])*xiaomi_num, "数量": xiaomi_num,"单价":int(per[1])}}
                shop_car_dict.update(per_dict)
                print(shop_car_dict)
            else:
                xiaomi_num = 1
                per_dict = {per[0]: {"总价": int(per[1])*xiaomi_num, "数量": xiaomi_num,"单价":int(per[1])}}
                shop_car_dict.update(per_dict)
                print(shop_car_dict)
        else:
            print("sorry your money is not enough!")
    elif option == "1":
        per = shop_house[1].split("：")
        if total_money >= int(per[1]):
            total_money = total_money - int(per[1])
            # print('-'.center("50"))
            print("%s is in shop_car,and you money is %d" % (per[0], total_money))
            if shop_car_dict.get(per[0]):
                iphone_num += 1
                per_dict = {per[0]: {"总价": int(per[1]) * iphone_num, "数量": iphone_num, "单价": int(per[1])}}
                shop_car_dict.update(per_dict)
                print(shop_car_dict)
            else:
                iphone_num = 1
                per_dict = {per[0]: {"总价": int(per[1]) * iphone_num, "数量": iphone_num, "单价": int(per[1])}}
                shop_car_dict.update(per_dict)
                print(shop_car_dict)
        else:
            print("sorry your money is not enough!")
    elif option == "2":
        per = shop_house[2].split("：")
        if total_money >= int(per[1]):
            total_money = total_money - int(per[1])
            # print('-'.center("50"))
            print("%s is in shop_car,and you money is %d" % (per[0], total_money))
            if shop_car_dict.get(per[0]):
                sanxing_num += 1
                per_dict = {per[0]: {"总价": int(per[1]) * sanxing_num, "数量": sanxing_num, "单价": int(per[1])}}
                shop_car_dict.update(per_dict)
                print(shop_car_dict)
            else:
                sanxing_num = 1
                per_dict = {per[0]: {"总价": int(per[1]) * sanxing_num, "数量": sanxing_num, "单价": int(per[1])}}
                shop_car_dict.update(per_dict)
                print(shop_car_dict)
        else:
            print("sorry your money is not enough!")
    elif option == "3":
        per = shop_house[3].split("：")
        if total_money >= int(per[1]):
            total_money = total_money - int(per[1])
            # print('-'.center("50"))
            print("%s is in shop_car,and you money is %d" % (per[0], total_money))
            if shop_car_dict.get(per[0]):
                huawei_num += 1
                per_dict = {per[0]: {"总价": int(per[1]) * huawei_num, "数量": huawei_num, "单价": int(per[1])}}
                shop_car_dict.update(per_dict)
                print(shop_car_dict)
            else:
                huawei_num = 1
                per_dict = {per[0]: {"总价": int(per[1]) * huawei_num, "数量": huawei_num, "单价": int(per[1])}}
                shop_car_dict.update(per_dict)
                print(shop_car_dict)
        else:
            print("sorry your money is not enough!")
    elif option == "4":
        per = shop_house[4].split("：")
        if total_money >= int(per[1]):
            total_money = total_money - int(per[1])
            # print('-'.center("50"))
            print("%s is in shop_car,and you money is %d" % (per[0], total_money))
            if shop_car_dict.get(per[0]):
                meizu_num += 1
                per_dict = {per[0]: {"总价": int(per[1]) * meizu_num, "数量": meizu_num, "单价": int(per[1])}}
                shop_car_dict.update(per_dict)
                print(shop_car_dict)
            else:
                meizu_num = 1
                per_dict = {per[0]: {"总价": int(per[1]) * meizu_num, "数量": meizu_num, "单价": int(per[1])}}
                shop_car_dict.update(per_dict)
                print(shop_car_dict)
        else:
            print("sorry your money is not enough!")
    elif option == "5":
        per = shop_house[5].split("：")
        if total_money >= int(per[1]):
            total_money = total_money - int(per[1])
            # print('-'.center("50"))
            print("%s is in shop_car,and you money is %d" % (per[0], total_money))
            if shop_car_dict.get(per[0]):
                lianxiang_num += 1
                per_dict = {per[0]: {"总价": int(per[1]) * lianxiang_num, "数量": lianxiang_num, "单价": int(per[1])}}
                shop_car_dict.update(per_dict)
                print(shop_car_dict)
            else:
                lianxiang_num = 1
                per_dict = {per[0]: {"总价": int(per[1]) * lianxiang_num, "数量": lianxiang_num, "单价": int(per[1])}}
                shop_car_dict.update(per_dict)
                print(shop_car_dict)
        else:
            print("sorry your money is not enough!")
    elif option == "6":
        per = shop_house[6].split("：")
        if total_money >= int(per[1]):
            total_money = total_money - int(per[1])
            # print('-'.center("50"))
            print("%s is in shop_car,and you money is %d" % (per[0], total_money))
            if shop_car_dict.get(per[0]):
                kupai_num += 1
                per_dict = {per[0]: {"总价": int(per[1]) * kupai_num, "数量": kupai_num, "单价": int(per[1])}}
                shop_car_dict.update(per_dict)
                print(shop_car_dict)
            else:
                kupai_num = 1
                per_dict = {per[0]: {"总价": int(per[1]) * kupai_num, "数量": kupai_num, "单价": int(per[1])}}
                shop_car_dict.update(per_dict)
                print(shop_car_dict)
        else:
            print("sorry your money is not enough!")
    elif option == "7":
        while True:
            option = input("are you sure to exit?
1：退出
2：返回")
            if option == "1":
                print("ByeBye")
                exit()
            elif option == "2":
                break
            else:
                print("input error")
                continue


    elif option == "8":
        if shop_car_dict:
            print("you money is %d" % (total_money))
            print(shop_car_dict)
            exit()
        else:
            print("you have buy nothing")
            print("you money is %d" % (total_money))
            exit()
    else:
        print("404")