for语句练习 阶乘

4的阶乘：4！=1*2*3*4

public class g {

    /**

     * @param args

     */

    public static void main(String[] args) {

   int n = 4;

        // 4！=1*2*3*4

        long l = 1;// 阶乘计算结果

        for (int i = 1; i <= n; i++)

        {

            l = l * i;

            {    System.out.println("l=" + l);}

        }

        System.out.println(n + "!=" + l);

}