#include "stdio.h"
int num(int number,int i)
{
int k,n=number;
if(i==0)
return 1;
if(num(number,i-1))
{
    while(n>i)
    {
        n=n-i;
        if((n+i)!=number)
         {
          
          for(k=0;number-k>n;k=k+i)
                       printf("%d+",i);
          printf("%d\n",n);
          
         }
         else
        printf("%d+%d\n",i,n);
    }
    return 1;
}
}
void main()
{
int m,n;
printf("input m:");
scanf("%d",&m);
printf("input n:");
scanf("%d",&n);
num(m,n);
}

别人要的单元加小程序...忘记谁要的了..就发这了...