???????????

?????????????????????????????????????????????????Fibonacci???С??????????????????

????[java] view plaincopyprint?

????if(index==1 || index==2){

????return 1;

????}

????if(index==1 || index==2){

????return 1;

????}

???????????????????????index???????????????е?顣???????????????????????

??????????????????????Σ???????????????????????????????????????????????????????f4?????????????f2??????f3?????????????f2???????????Щ??????????????????С??????￡?????????????????????????????????????????????????????????????????????????????

??????n????

????????????????5????

??????????

????[java] view plaincopyprint?

????public class Factorial_Five {

????/**

????* time:2012.12.2

????* author:??????

????* description:?????n????

????*/

????public static void main(String[] args) {

????Factorial_Five factorial_Five=new Factorial_Five();

????int result=factorial_Five.factorial(5);

????System.out.println(result);

????}

????public int factorial(int index){

????if(index==1){

????return 1;

????}else{

????return factorial(index-1)*index;

????}

????}

????}

????public class Factorial_Five {

????/**

????* time:2012.12.2

????* author:??????

????* description:?????n????

????*/

????public static void main(String[] args) {

????Factorial_Five factorial_Five=new Factorial_Five();

????int result=factorial_Five.factorial(5);

????System.out.println(result);

????}

????public int factorial(int index){

????if(index==1){

????return 1;

????}else{

????return factorial(index-1)*index;

????}

????}

????}