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