数字的阶乘
import math
Sum=0
num = int(input('请输入一个数字:'))
for i in range(1,num+1):
F=math.factorial(i)
get_num=math.factorial(num)
Sum =Sum+F
print(num,'的阶乘为',get_num)
print('阶乘之和:',Sum)
来源:CSDN
作者:LY_dreams
链接:https://blog.csdn.net/MengJing_/article/details/103796453