小弟不胜感激阿···
#include<stdio.h>
#include<stdlib.h>
#include<conio.h>
#include<malloc.h>
#define MAXS 50
 
struct Triple{
   int i,j;
   int e;
};
struct TSM {
   struct Triple data[MAXS];
   int mu,nu,tu;
};


void input(struct TSM *T)
 { int r=0;

     printf("mn:  ");scanf("%d",&T->mu);

     printf("nu:  ");scanf("%d",&T->nu);

     printf("tu:  ");scanf("%d",&T->tu);

     printf("\n");

  for(r=0;r<T->tu;r++)
  {   printf("i:  ");
      scanf("%d",&T->data[r].i);
      printf("j:  ");
      scanf("%d",&T->data[r].j);
      printf("e:  ");
      scanf("%d",&T->data[r].e);
      printf("\n");
  }
 }

void  print(struct TSM *T)
 {int i=0,j=0,r=0;
      for(i=0;i<T->mu;i++)
      { printf("\n");
        for(j=0;j<T->nu;j++)
        {if(i==T->data[r].i&&j==T->data[r].j)
            {printf("       %d ",T->data[r].e);r++;}
         else printf("       0 ");
        }
      printf("\n");
      }
 }


void add(struct TSM *A,struct TSM *B,struct TSM *C)

 { int r=0,k=0,c=0,ai,aj,bi,bj;printf("c==%d",A->data[r].e);
   if(A->mu!=B->mu||A->nu!=B->nu)
       exit(0);
   else
      C->mu=A->mu;C->nu=A->nu;
  while(r<A->tu&&k<B->tu)
       {
     ai=A->data[r].i;aj=A->data[r].j;
     bi=B->data[k].i;bj=B->data[k].j;

    if(ai<bi)
    {
     C->data[c].e=A->data[r].e;printf("c==%d,%d",A->data[r].e,c)
     C->data[c].i=A->data[r].i;
     C->data[c].j=A->data[r].j;
     r++; printf("*<* r=%d ",r);printf("k=%d ",k);
     c++;printf("c==%d,%d",A->data[r].e,c);
     }
    else if(ai==bi)
       {
        if(aj==bj)
         {
          C->data[c].e=A->data[r].e+B->data[k].e;
          C->data[c].i=A->data[r].i;
          C->data[c].j=A->data[r].j;
          r++;
          c++;
          k++;printf("*==*r=%d ",r);printf("k=%d ",k);printf("c==%d,%d",C->data[c].e,c);
          }
       else if(aj<bj)
          {
           C->data[c].e=A->data[r].e;
           C->data[c].i=A->data[r].i;
           C->data[c].j=A->data[r].j;
           r++;c++;printf("*=<*r=%d ",r);printf("k=%d ",k);
        printf("c==%d,%d",C->data[c].e,c);
           }
        else if(aj>bj)
        {
         C->data[c].e=B->data[k].e;
         C->data[c].i=B->data[k].i;
         C->data[c].j=B->data[k].j;
         k++;c++;printf("*=>*r=%d ",r);printf("k=%d ",k);
 printf("c==%d,%d",C->data[c].e,c);
         }
        }
     else  if(ai>bi)
          {
           C->data[c].e=B->data[k].e;
           C->data[c].i=B->data[k].i;
           C->data[c].j=B->data[k].j;
           k++;c++;printf("*>*r=%d ",r);printf("k=%d ",k);
printf("c==%d,%d",C->data[c].e,c);
           }
    }
  while(k<B->tu)
     {
      C->data[c].e=B->data[k].e;
      C->data[c].i=B->data[k].i;C->data[c].j=B->data[k].j;
      k++;c++;printf("*b*r=%d ",r);printf("k=%d ",k);
printf("c==%d,%d",C->data[c].e,c);
      }
  while(r<A->tu)
     {
      C->data[c].e=A->data[r].e;
      C->data[c].i=A->data[r].i;C->data[c].j=A->data[r].j;
      r++;c++;printf("*a*r=%d ",r);printf("k=%d ",k);
printf("c==%d,%d",C->data[c].e,c);
      }printf("*ziji*r=%d ",r);printf("k=%d ",k);
printf("c==%d,%d",C->data[c].e,c);
}

void main()
{struct  TSM *A,*B,*C;
 clrscr();
 printf(" =========the game begin==========\n");
 memset(A,0,sizeof(struct TSM));
 memset(B,0,sizeof(struct TSM));
 memset(C,0,sizeof(struct TSM));
 
 input(A);
 printf("\n A= \n");
 print(A);
 printf("\n");
 input(B);
 printf("\n B= \n");
 print(B);
 printf("\n");
 add(A,B,C);
 printf("\n so have A+B= \n");
 print(C);
 printf("\n =========the game over==========");
}