python累乘函数

Question

主模块代码如下：

n = int(input())
f = eval(input())
print(product(n, f))

Answer 1

def f(n):
    return n

def product(n,f):
    s = 1;
    for i in range(1,n+1):
        s *= f(i)
    return s

n = int(input())
print(product(n,f))