public class Number {
public static void main(String[] args) {
for (int i=1;i<=1000;i++){
int sum=0;
for (int j=1;j
运行效果:

public class Number {
public static void main(String[] args) {
for (int i=1;i<=1000;i++){
int sum=0;
for (int j=1;j
运行效果: