csharp 计算数字的阶乘。从C＃的计算机编程基础知识http://www.introprogramming.info/wp-content/uploads/2

Posted 2021-05-12

int n = int.Parse(Console.ReadLine());
decimal factorial = 1;

while (true)
{
  if (n <= 1)
  {
    break;
  }
  factorial *= n;
  n--;
}
Console.WriteLine("n! = " + factorial);

// 5
// n! = 120