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('\n',fp_write);
}

fclose(fp_read);
fclose(fp_write);

system("pause");
return 0;
}