pzc/输入学生信息、计算、增加学生信息.c

void select()
{
	FILE *fp,*ff;
	int i,n;
	if((fp=fopen("a.txt","w"))==NULL)
	{
		printf("file open error");
		exit(0);
	}
	printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λѧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ\n");
	scanf("%d",&n);
	for(i=0;i<n;i++)
	{
	printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѧ<EFBFBD><EFBFBD>:\n");
	scanf("%d",&student[i].id);
	fprintf(fp,"%d ",student[i].id);
	printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>༶:\n");
	scanf("%d",&student[i].class);
	fprintf(fp,"%d ",student[i].class);
	printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>:\n");
	scanf("%s",&student[i].name);
	fprintf(fp,"%s ",student[i].name);
	printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>뿪ʼ<EFBFBD>ϻ<EFBFBD>ʱ<EFBFBD>䣨Сʱ<EFBFBD><EFBFBD>:\n");
	scanf("%d",&student[i].time_beginhour);
	fprintf(fp,"%d ",student[i].time_beginhour);
	printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>뿪ʼ<EFBFBD>ϻ<EFBFBD>ʱ<EFBFBD>䣨<EFBFBD><EFBFBD><EFBFBD>ӣ<EFBFBD>:\n");
	scanf("%d",&student[i].time_beginminute);
	fprintf(fp,"%d ",student[i].time_beginminute);
	printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϻ<EFBFBD>ʱ<EFBFBD>䣨Сʱ<EFBFBD><EFBFBD>:\n");
	scanf("%d",&student[i].time_endhour);
	fprintf(fp,"%d ",student[i].time_endhour);
	printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϻ<EFBFBD>ʱ<EFBFBD>䣨<EFBFBD><EFBFBD><EFBFBD>ӣ<EFBFBD>:\n");
	scanf("%d",&student[i].time_endminute);
	fprintf(fp,"%d\n",student[i].time_endminute);
    }
	if(fclose(fp))
	{
		printf("Can not close the file\n");
		exit(0);
	}
	ff=fopen("b.txt","w");
	fprintf(ff,"%d",i);/*<2A><><EFBFBD><EFBFBD>ѧ<EFBFBD><D1A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>*/ 
	fclose(ff);
	printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɹ<EFBFBD>");
}
void count()
{

	FILE *fp;
	int id,i=0,j,money;
		printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѧ<EFBFBD><EFBFBD>\n");
		scanf("%d",&id);
	if((fp=fopen("a.txt","r"))==NULL)
	{
		printf("file open error");
		exit(0);
	}
	while(!feof(fp))
	{
		fscanf(fp,"%d%d%s%d%d%d%d",&student[i].id,&student[i].class,&student[i].name,&student[i].time_beginhour,&student[i].time_beginminute,&student[i].time_endhour,&student[i].time_endminute);
		i++;
		j=i;
	}
	for(i=0;i<=j;i++)
	{
	if(student[i].id==id)
	{
	printf("ѧ<EFBFBD>ţ<EFBFBD>%d\n",student[i].id);
	printf("<EFBFBD>༶<EFBFBD><EFBFBD>%d\n",student[i].class);
	printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>%s\n",student[i].name);
	printf("<EFBFBD><EFBFBD>ʼ<EFBFBD>ϻ<EFBFBD>ʱ<EFBFBD>䣻%d:%d\n",student[i].time_beginhour,student[i].time_beginminute);
	printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϻ<EFBFBD>ʱ<EFBFBD>䣻%d:%d\n",student[i].time_endhour,student[i].time_endminute);
	money=(student[i].time_endhour-student[i].time_beginhour)*60*m+(student[i].time_endminute-student[i].time_beginminute)*m;
    }
    }
    if(fclose(fp))
	{
		printf("Can not close the file\n");
		exit(0);
	}
	printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϻ<EFBFBD><EFBFBD>ķ<EFBFBD><EFBFBD><EFBFBD>Ϊ:%d",money);
}
void add()
{
	int i;
	int n,j;
	printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD>Ӷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD>Ϣ\n");
	scanf("%d",&n);
	FILE *fp,*ff;
	ff=fopen("b.txt","r");
	fscanf(ff,"%d",&i);
	fclose(ff);
	fp=fopen("a.txt","a");
	printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD>ѧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ\n");
	for(j=1;j<=n;j++)
	{
    printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѧ<EFBFBD><EFBFBD>:\n");
    scanf("%d",&student[i+j].id);
	fprintf(fp,"%d ",student[i+j].id);
	printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>༶:\n");
	scanf("%d",&student[i+j].class);
	fprintf(fp,"%d ",student[i+j].class);
	printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>:\n");
	scanf("%s",&student[i+j].name);
	fprintf(fp,"%s ",student[i+j].name);
	printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>뿪ʼ<EFBFBD>ϻ<EFBFBD>ʱ<EFBFBD>䣨Сʱ<EFBFBD><EFBFBD>:\n");
	scanf("%d",&student[i+j].time_beginhour);
	fprintf(fp,"%d ",student[i+j].time_beginhour);
	printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>뿪ʼ<EFBFBD>ϻ<EFBFBD>ʱ<EFBFBD>䣨<EFBFBD><EFBFBD><EFBFBD>ӣ<EFBFBD>:\n");
	scanf("%d",&student[i+j].time_beginminute);
	fprintf(fp,"%d ",student[i+j].time_beginminute);
	printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϻ<EFBFBD>ʱ<EFBFBD>䣨Сʱ<EFBFBD><EFBFBD>:\n");
	scanf("%d",&student[i+j].time_endhour);
	fprintf(fp,"%d ",student[i+j].time_endhour);
	printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϻ<EFBFBD>ʱ<EFBFBD>䣨<EFBFBD><EFBFBD><EFBFBD>ӣ<EFBFBD>:\n");
	scanf("%d",&student[i+j].time_endminute);
	fprintf(fp,"%d\n",student[i+j].time_endminute);
    }
	fclose(fp);
	printf("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɹ<EFBFBD>");
	ff=fopen("b.txt","w");
	fprintf(ff,"%d",i+n);
	fclose(ff);
}