#include
#include
#define N 2
struct student
{
char name[10];
int score;
}stu[N];
void main()
{
int i;char grade[N],filename[10];float aver=0;
FILE *fp;
printf("请输入文件名：");
scanf("%s",filename);
if((fp=fopen(filename,"w"))==NULL)
{printf("无法打开文件");exit(0);}
for(i=0;i=aver+10) grade='A';
else if (stu.score#include#define N 2struct student {
char name[10];
int score;} stu[N];void main(){
int i;
char grade[N], filename[10];
float aver = 0;
FILE *fp;
printf("请输入文件名：");
scanf("%s", filename);
if ((fp = fopen(filename, "w")) == NULL) {printf("无法打开文件");exit(0);...
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