看一看下面的例子,C#语言的,求Fibonacci数列 递归算法 public static decimal Fibonacci(decimal i) { if (i == 0 || i == 1) { return i; } else { return Fibonacci(i - 1) + Fibonacci(i - 2); } } 迭代算法 public static decimal Fibonacci_iter(decimal a, decimal b, decimal count) { if (count == 0) return b; else return Fibonacci_iter(a + b, a, count - 1); } static decimal Fibonacci2(decimal n) { return Fibonacci_iter(1, 0, n); } 本文来自博客,转载请标明出处:http://blog.csdn.net/crazyitboy/archive/2010/09/14/5883169.aspx