def c():
    total = []
    while True:
        unit= input("请输入：")
        if unit== 'q':
            break
        else:
            try:
                unit=int(unit)
            except:
                print('请重新输入一个数字')
            else:
                total.append(unit)
            print('-'*30)
    return total
def a(money):
    count=0
    for i in money:
        count+=i
    return count
result=c()
pay=sum(price)
print('您一共消费了'+str(pay)+'元！扫码还是现金呢？')