2+22+222+2222

def demo(n):
    def inner(x,y):
        sum = 0
        list = []
        for i in range(1,y+1):
            item = int(str(x)*i)
            list.append(item)
            sum += item
        print(list)
        return n(sum)
    return inner
@demo
def func(n):
    print("结果是：{}".format(n))
x = int(input("请输入基数："))
y = int(input("请输入次数："))
func(x,y)

2+22+222+2222

原文：https://www.cnblogs.com/lihe94/p/11977369.html