咦，不好意思，图好像有问题，结果是132,224，315，453，535，561，635，661，753，805，815

#include <stdio.h>
#include <math.h>
int main(void)
{
    int a,b;
    int c,d,m;

    for(a=100.0;a<=999;a++)
    {
        if(a%9 != 0)
            continue;
        b=(int)a/9;
        c=a%10;
        d=(int)a/10%10;
        m=(int)a/100;
        if(b==c*c+d*d+m*m)
            printf("number %d find %d = %d * %d + %d *%d + %d * %d\n",a,b,c,c,d,d,m,m);
    }
    return 0;
}

答案只有一个   number 315 find 35 = 5 * 5 + 1 *1 + 3 * 3

#include "stdio.h"
main()
{
  int i,th,hu,de;
  for(i=100;i<=999;i++)
{th=i/100;
 hu=(i%100)/10;
 de=(i%100)%10;
 if((i/9)==(th*th+hu*hu+de*de)&&(i%9)==0)pritnf("%d\t",i);}//应该把判断是否能被9整除加进去
gech();
}

#include <stdio.h>
#include <math.h>
void main()
{   
    int a,b;
    int c,d,m;

    for(a=100;a<=999;a++)
    {    if(a%9==0)
         {b=a/9;
         c=a%10;
         d=(a/10)%10;
         m=a/100;
         if(b==c*c+d*d+m*m)
            printf("%d\n",a); }
}
          getch();


}