自动售货机的投币编程可以通过多种编程语言实现,例如Python、VHDL、Verilog等。下面我将分别提供Python和VHDL的示例代码。
Python示例代码
```python
商品信息字典,键为商品编号,值为包含商品名称和价格的字典
goods = {
"1": {"name": "可乐", "price": 3},
"2": {"name": "薯片", "price": 5},
"3": {"name": "巧克力", "price": 8}
}
记录投币金额
total_money = 0
def display_goods():
"""显示商品信息"""
print("商品列表:")
for code, info in goods.items():
print(f"{code}: {info['name']}, 价格: {info['price']} 元")
def insert_money():
"""投币功能"""
global total_money
while True:
try:
money = float(input("请投入硬币或纸币(输入金额,输入负数或非数字结束投币): "))
if money < 0:
break
total_money += money
except ValueError:
print("请输入有效的金额")
def select_product(product_code):
"""选择商品"""
if product_code in goods:
product = goods[product_code]
print(f"您选择了 {product['name']},价格: {product['price']} 元")
if total_money >= product['price']:
total_money -= product['price']
print(f"找零: {total_money} 元")
这里可以添加出货逻辑
else:
print("余额不足,请继续投币")
else:
print("商品编号无效")
def main():
display_goods()
insert_money()
while total_money > 0:
product_code = input("请选择商品编号(输入Q结束): ")
if product_code.upper() == 'Q':
break
select_product(product_code)
if __name__ == "__main__":
main()
```
VHDL示例代码