題目

代碼

package lesson.l6_review;public class PrefectNumber {public static void main(String[] args) {for (int i = 1; i <=1000 ; i++) {int num=0;for (int j = 1; j <=i-1 ; j++) {if (i%j==0){num+=j;}}if (i==num){System.out.print(i+"\t");}}}
}