func.py

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(unit)
			finally:
				print("========================")
	return total

def sum(money):
	count=0
	for i in money:
		count=count+i
	return count

price=new_input()
pay=sum(price)
print('你一共消费了'+str(pay)+'元！扫码还是现金')