5-22购物车

gwc = [["长袖", 588],["短袖", 388],["长裤", 299],["短裤", 199],["帽子", 200]]
selected = {}
total = 0
while True:
    choice = input("输入你所选择的商品编号（0长袖，1短袖，2长裤，3短裤，4帽子）:").strip()
    if choice.isdigit():
        choice = int(choice)
        if choice < len(gwc) and choice >= 0:
            product = gwc[choice]
            if product[0] in selected:
                selected[product[0]][1] += 1
            else:
                selected[product[0]] = [product[1], 1]
            print("目前你的购物车", selected)
    elif choice == "buy":
            print("购买的商品如下:")
            print("id", "商品", "数量","单价", "总价")
            id_counter = 1
            for key in selected:
                print(id_counter, "\t",
                      key, "\t",
                      selected[key][1], "\t\t",
                      selected[key][0], "\t",
                      selected[key][1] * selected[key][0])
                id_counter += 1
                total+= selected[key][1] * selected[key][0]
            print("总价:", total)
            break

    else:
            print("请输入正确的商品编号！")