package test;
public class hhh {
public static void main(String[] args) {
// TODO Auto-generated method stub
int a=999;
int b,c,d,e;
b=a/100;
c=a/10%10;
d=(a-b*100)/10;
e=d+b+c;
System.out.println("和为"+e);
}
}
原文：https://www.cnblogs.com/1353b/p/12522879.html