#include "stdio.h"
#include "string.h"
#include "stdlib.h"
#include "malloc.h"
void prin1();
void choose();
typedef struct subjects
{
	int num;
	char name[20];
	char kind[10];
	int stime;
	int ttime;
	int etime;
	int score;
	int term;
	struct subjects *next;
}sub;
sub *head=NULL;
sub *create_form()
{
	sub *head,*tail,*p;
	int num,stime,ttime;
	int etime,score,term;
	char name[20],kind[10];
	int size=tail==NULL;
	printf("输入选修课程信息:\n");
	scanf("%d%s%s%d%d%d%d%d",&num,&name,&kind,&stime,&ttime,&etime,&term);
	while(num!=0)
	{
		p=(sub *)malloc(size);
		p->num=num;
		strcpy(p->name,name);
		strcpy(p->kind,kind);
		p->stime=stime;
		p->ttime=ttime;
		p->etime=etime;
		p->score=score;
		p->term=term;
		if(head==NULL)
		head=p;
		else
		tail->next=NULL;
		tail=p;
		scanf("%d%s%s%d%d%d%d%d",&num,&name,&kind,&stime,&ttime,&etime,&score,&term);
	}
	tail->next=NULL;
	return head;
}
void savefile1()
{
	sub *p;
	FILE *fp;
	fp=fopen("3.txt","w");
	if(fp==NULL)exit(0);
	for(p=head;p;p->next)
	fprintf(fp,"%5d%12d%9d%11d%11d%7d\n",p->num,p->name,p->kind,p->stime,p->ttime,p->etime,p->score,p->term);
	fclose(fp);
	printf("创建后的信息已放入'3.txt'文件中\n");
	system("pause");
}
void readfile()
{
	void *myInsert(sub*);
	sub *newSub;
	int num,stime,ttime,etime;
	int score,term;
	char c,name[20],kind[10],fname[20];
	FILE *fp;
	fp=fopen("3.txt","r");
	while(!feof(fp))
	{
		newSub=(sub*)malloc(sizeof(sub));
		fscanf(fp,"%d%s%s%d%d%d%d%d\n",&newSub->num,&newSub->name,&newSub->kind,&newSub->stime,&newSub->ttime,&newSub->etime,&newSub->score,&newSub->term);
		myInsert(newSub);
	}
	fclose(fp);
}
void prin()
{
	sub *ptr;
	head=NULL;
	readfile();
	printf("课程编号 课程名称 课程性质 总学时 授课学时 实践或上机学时 学分 开学学期\n");
}