sur_stu_func.c

图书管理系统 给予文件的 可以运行的 在ＭＩＮＧＷ上运行

/* file_name:	sur_stu_func.c
 * author:	wangtiezhen miuliang @ Xidian University
 * description:	
 */

flag_type sur_stu_temp(void)
{
	printf("hello, world.\n");
	
	return session_ok;
}
flag_type stu_self_information(void)
{
	struct stu* p = find_stu_num(stubt, user.id);
	int n = bb_stu_borrow_num(bbbt, user.id);
	printf("您好%s，您的借书号为%d，您总计借书%d本\n",  p->name,p->num, n);
	return session_ok;
}
int print_book_for_stu(struct book* p)
{
	if(p == NULL){
		printf("The book hasn't find.\n");
		return -1;
	}
	printf("书号：%d，书名:%s，作者：%s，价格：%d\n",p->bnum, p->bname, p->bwriter, p->bprice);
}
flag_type stu_find_books()
{
	printf("请选择搜索方式：\n"
	"1.书号\n"
	"2.书名\n"
	"3.作者\n");
	int i, n;
	char c[20];
	struct book* p = NULL;
	if(scanf("%d", &i) != 1){
		return -1;
	}
	switch(i){
		case 1:
			printf("请输入书号:");
			scanf("%d", &n);
			p = find_book_num(bookbt, n);
			print_book_for_stu(p);
			break;
		case 2:
			printf("请输入书名:");
			scanf("%s", c);
			p = find_book_name(bookbt, c);
			print_book_for_stu(p);
			break;
		case 3:
			printf("请输入作者:");
			scanf("%s", c);
			p = find_book_writer(bookbt, c);
			print_book_for_stu(p);
			break;
	}
	return session_ok;
}
flag_type stu_borrowed_books(void)
{
	if( bb_borrowed(bbbt, user.id) == 0){
		printf("you didn't borrowed any books.\n");
	}
	return session_ok;
}
int bb_borrowed(bbpointer root, int snum)
{
	int n = 0;
//	putchar('j');
	if(root == NULL)
	{
		return 0;
	}
	
	n += bb_borrowed (root->lchild, snum );
	if(root -> snum == snum){
		n++;
		struct book* p = find_book_num(bookbt, root->bnum);
		print_book_for_stu(p);
	}
	n += bb_borrowed (root->rchild, snum );
	return n;
}