#include "stdio.h"
#include "conio.h"
struct data
{
    long int zhanhao;               
    int year;                  
    int month;                  
    int day;                    
    int cs;
}rzbfl[730];


float b[2][365];



void read()
{
    FILE *fp;
    int i;
    if((fp=fopen("mn","rb"))==NULL)
    {
        printf("cannot open file\n");
        return;
    }
    for(i=0;i<730;i++)
        fscanf(fp,"%ld%d%d%d%f",&rzbfl[i].zhanhao,&rzbfl[i].year,&rzbfl[i].month,&rzbfl[i].day,&rzbfl[i].cs);
    fclose(fp);
}

void save()
{
    FILE *fp;
    int i,j;
    if((fp=fopen("mn","w"))==NULL)
    {
        printf("cannot open file\n");
        return;
    }
    for(i=0;i<2;i++)
    {
        for(j=0;j<365;j++)
            fprintf(fp,"%5d   ",b[i][j]);
        fprintf(fp,"\n");
    }
    return;
}

void main()
{
    int y,i,j,k;

    read();

    y=rzbfl[0].year;

    j=0;k=0;
    for(i=0;i<730;i++)
        {
         if(rzbfl[i].year==y)
            {
              b[j][k]=rzbfl[i].cs;
              k++;
            }
         else
            {
              j=j+1;
              k=0;
              b[j][k]=rzbfl[i].cs;
              y=rzbfl[i].year;

            }
         }
    save();

}

请各位高手指点一下我程序里的错误啊~~万分感谢！！