读取一个文件的数据经过某种操作，将结果存储到另外一个文件

#include<stdio.h>
#include<stdlib.h>

int main()
{
    FILE *fp_read, *fp_write;
    int i,j,k,l;
    float avg;
    fopen_s(&fp_read,"E:\score.txt","r");
    fopen_s(&fp_write,"E:\average.txt","w");

    while(!feof(fp_read))
    {
        fscanf(fp_read,"%d %d %d %d",&i,&j,&k,&l);
        avg = (float)(i + j + k + l) / 4;
        fprintf(fp_write,"%3d %3d %3d %3d %.2f",i,j,k,l,avg);
        fputc('
',fp_write);
    }

    fclose(fp_read);
    fclose(fp_write);

    system("pause");
    return 0;
}