求什么

log = print
def ensure(condition, message):
    if condition:
        log('*** 测试成功')
    else:
        log('*** 测试失败:', message)


def product(number_list):
    r = 1
    for i in range(len(number_list)):
        n = number_list[i]
        r = r * n
    return r


def test_product():
    numbers = [1, 2, 3, 4]
    result = 24
    ensure(product(numbers) == result, 'error product 1')
    ensure(product([0, 7, 9]) == 0, 'error product 2')
    ensure(product([]) == 1, 'error product 3')
    log('$$$ product 测试完成')
test_product()

直接复制就行了

读取到 24，应为 ***。 (这不合理！！！😕 （报错内容）)

没缩进。。。