请帮助我理解我错在哪里：
这是一个问题：创建一个称为递归析因的递归函数和一个称为迭代析因的迭代函数Accepts as parameter an Integer n
Computes the factorial of n
Returns the factorial of n
这是我用来回答问题的测试：import unittest
class RecursiveTestCase(unittest.TestCase):
def test_recursive_factorial_one(self):
result = recursive_factorial(4)
self.assertEqual(result, 24, msg="Inaccurate value")
def test_recursive_factorial_two(self):
result = recursive_factorial(0)
self.assertEqual(result, 1, msg="Inaccurate value")
def test_iterative_factorial_one(self):
result = iterative_factorial(5)
self.assertEqual(result, 120, msg="Inaccurate value")
def test_iterative_factorial_two(self):
result = iterative_factorial(0)
self.assertEqual(result, 1, msg="Inaccurate value")
这是我写的代码：def recursive_factorial(n):
if n == 0:
return 1
else:
return n * recursive_factorial(n-1)
def iterative_factorial(n):
x = 1
li = list(range(1, n + 1))
for each in li:
x = x * each
这是我得到的错误：
一。迭代因式检验Failure in line 21, in test_iterative_factorial_one self.assertEqual(result, 120, msg="Inaccurate value") AssertionError: Inaccurate value
2。检验迭代因子二Failure in line 25, in test_iterative_factorial_two self.assertEqual(result, 1, msg="Inaccurate value") AssertionError: Inaccurate value
请帮助我理解我错在哪里。