python中计算某个数的阶乘

1. 方法（代码）如下:

x = 1
y = int(input('请输入计算数字’）)

for i in range(1, y + 1):

 x = x * i

print(x)

2.表现形式不一：

n = int(input('n = '))
jc = 1

for i in range(1, n + 1):
jc = jc * i

print(’{}! = {}’.format(n, jc))