为什么不返回最大公约数(zdgys)啊？

Question

package di5章;

import java.util.Scanner;

public class Topgys {

public static void main(String[] args) {

Topgys hello=new Topgys();

Scanner input=new Scanner(System.in);

System.out.println("shuru di yi ge shu : ");

int n1=input.nextInt();

System.out.println("shuru di er ge shu : ");

int n2=input.nextInt();

int zdgys=hello.gys(n1, n2);

System.out.println(n1+" and "+n2+" 的最大公约数是: "+zdgys);

}

public  int gys(int n1,int n2){

int i=2;

int zdgys=1;

while(i<=n1&&i<=n2){

if(n1%i==0&&n2%i==0){

zdgys=i;

i++;

}

}

return zdgys;

}

}

Answer 1

..........其他的省略...............        while (i <= n1 && i <= n2) {             if (n1 % i == 0 && n2 % i == 0) {                 zdgys = i;             }                          //将i++放在这里就ok了             i++;         }...........其他的省略..............