#include<stdio.h>
#include<stdlib.h>
struct student
{
char num[6];
char name[8];
float score[3];
double avr;
}stu[3];
void main()
{
int i,j;
float sum=0.0;
FILE *fp;
for(i=0;i<3;i++)
{
printf(" please input No. %d score:\n",i);
printf("stuNo:");
scanf("%s",stu[i]. num);
printf("name:");
scanf("%s",stu[i].name);
sum=0;
for(j=0;j<3;j++)
{
printf("score %d :",j+1);
scanf("%d",&stu[i].score[j]);
sum+=stu[i].score[j];
}
stu[i].avr=sum/3.0;//获取平均分
}
fp=fopen("C:\Users\MagicBook\Desktop\c文件\数据存放\4.txt","w");
for(i=0; i<3;j++)
{
if(fwrite(&stu[i], sizeof(struct student),1, fp)!=1)
{
printf("file write error\n");
}
}
fclose(fp);
}