写一条自动售货机的Python代码

好的，以下是一个简单的自动售货机的Python代码：

products = {"A": {"name": "可乐", "price": 3},
            "B": {"name": "矿泉水", "price": 2},
            "C": {"name": "雪碧", "price": 3.5}}

money = 0
selected_product = ""

while True:
    print("可选商品:")
    for key, value in products.items():
        print(key + "：" + value["name"] + "，价格：" + str(value["price"]) + "元")

    selected_product = input("请输入您选择的商品编号（A、B或C），或输入0退出：")

    if selected_product == "0":
        print("退出成功！")
        break
    elif selected_product not in products.keys():
        print("非法输入，请输入A、B或C！")
        continue

    selected_price = products[selected_product]["price"]
    print("您选择的商品为：" + products[selected_product]["name"] + "，价格为" + str(selected_price) + "元")

    while True:
        money_input = input("请输入投入的钱数(可以按q键退出)：")
        if money_input == "q":
            print("退出成功！")
            break
        elif not money_input.isdigit():
            print("非法输入，请重新输入：")
            continue

        money += float(money_input)
        if money < selected_price:
            print("请继续投入，剩余：" + str(selected_price - money) + "元")
            continue
        else:
            change = money - selected_price
            print("购买成功！找零：" + str(change) + "元")
            money = 0
            break

这个代码可以让用户选择购买的商品，投入相应的钱数，然后给出找零。如果需要退出，可以输入0或按q键。