代码:
package com.homework;
import java.util.Scanner;
public class Bit_Sum {
public static void main(String[] args) {
// TODO Auto-generated method stub
Scanner input = new Scanner(System.in);
System.out.print("输入一个任意位数的整数:");
long num = input.nextLong();
long a=0;
while(num>0) {
a += num%10;
num /= 10;
}
System.out.print("该数每一位相加之和:"+a);
}
}