factorial.cs

来自「150个经典的入门学习程序源代码」· CS 代码 · 共 19 行

// Factorial.cs
// compile with: /target:library
using System; 

// Declares a namespace. You need to package your libraries according
// to their namespace so the .NET runtime can correctly load the classes.
namespace Functions 
{ 
    public class Factorial 
    { 
// The "Calc" static method calculates the factorial value for the
// specified integer passed in:
        public static int Calc(int i) 
        { 
            return((i <= 1) ? 1 : (i * Calc(i-1))); 
        } 
    }
}