fack.py

def new_input():
    total = []
    while True:
        unit = input("请输入钱数（完成结束）：")
        if unit == '完成':
            break
        else:
            try:
                unit = int(unit)
            except:
                print('请输入数字')
            else:
                total.append(unit)
            print("-"*30)
    return total
def sum(money):
    count=0
    for i in money:
        count = count+i
    return count
prict=new_input()
pay=sum(price)
print("你一共消费"+str(pay)+"元")