python购物车简单实现编写
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2024-03-20 13:21:52
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伪代码:
可随时退出启动后让用户输入工资
然后打印列表
允许用户根据商品编号购买商品
用户选择商品后
检测余额是否足够 够就扣,不够就提示
退出时,打印一下购买的商品和余额
代码实现:
product_list = [
("MAX",9000),
("littlecar",520000),
("dress",249),
("python book",75),
("bike",2000),
]
saving = input("please input your money:") #变量进行判断
shopping_car = []
if saving.isdigit():
saving = int(saving)
while True:
print("商品列表".center(50, "="))
print("编号".center(10, "*"), "名称".ljust(27, "*"), "价格".ljust(6, "*"))
for i in enumerate(product_list): # , 1 为了从1编号开始
print(str(i[0]).center(10, " "), str(i[1][0]).ljust(30, " "), str(i[1][1]).ljust(15, " "))
choice = input("请选择您要购买的商品编号:[q:退出]")
if choice.isdigit():
choice = int(choice)
if choice >= 0 and choice < len(product_list):
p_item = product_list [choice]
if p_item [1]< saving:
saving -= p_item[1]
shopping_car.append(p_item)
else:
print("您余额不足,还剩%s"%saving)
print("已购买商品列表".center(50, "="))
print(p_item)
else:
print("请选择存在的编号")
elif choice == "q":
for i in shopping_car:
print(i)
print("您还剩%s元钱"%saving)
break
else:
print("please input number[0-9]")
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