1 import sys 2  3  4 def fact(n): 5     final = n 6     while n > 1: 7         final *= n - 1 8         n -= 1 9     return final #邏輯嚴謹，不要忘了return10 11 12 def main():13     t = int(sys.stdin.readline())14     for n in sys.stdin:15         PRint fact(int(n)) #讀取String的轉換是一個常見的坑16 17 18 main()

 1 from math import factorial #熟悉這種調用方法 2  3  4 def main(): 5     t = int(raw_input()) 6     for i in range(t): 7         print factorial(int(raw_input())) 8   9 10 main()