#include???
#include???
#include???
struct?book
{???
????char?book_name[30];???
????int?ID;???
????double?price;???
????char?author[20];???
????char?state[20];???
????char?name[20];???
????char?sex[10];???
????int?studnum;??
????struct?book?*book_next;???
};???
struct?student
{???
????char?name[20];???
????char?sex[10];???
????int?studnum;???
????char?borrow[30];???
????struct?student?*student_next;?
};?
void?Print_Book（struct?book?*head_book）;/*瀏覽所有圖書(shū)信息*/??
void?Print_Student（struct?student*head_student）;/*瀏覽所有學(xué)生信息*/??
struct?book?*Create_New_Book（）;/*創(chuàng)建新的圖書(shū)庫(kù)，圖書(shū)編號(hào)輸入為0時(shí)結(jié)束*/??
struct?book?*Search_Book_ID（int?IDstruct?book?*head_book）;???
struct?book?*Search_Book_name（char?*b_namestruct?book?*head_book）;???
struct?book?*Insert_Book（struct?book?*head_bookstruct?book?*stud_book）;/*增加圖書(shū)，逐個(gè)添加*/??
struct?book?*Delete_Book（struct?book?*head_bookint?ID）;/*刪除圖書(shū)*/??
struct?student?*Create_New_Student（）;???
struct?student?*Search_Student_studnum（int?studnumstruct?student?*head_student）;???
struct?student?*Search_Student_name（char?*s_namestruct?student?*head_student）;???
struct?student?*Insert_Student（struct?student?*head_studentstruct?student?*stud_club）;???
struct?student?*Delete_Student（struct?student?*head_studentint?studnum）;?
struct?book?*Lent_Book（int?IDint?studnumstruct?book?*head_bookstruct?student?*head_student）;???
struct?book?*back（int?IDint?studnumstruct?book?*head_bookstruct?student?*head_student）;?

int?main（）???
{???
????struct?book?*head_book*p_book;???
????char?book_name[30]name[20]author[20]sex[10];???
????int?ID;???
????double?priceprice_hprice_l;???
????int?size_book=sizeof（struct?book）;???
????int?m=1n=1fhoxy;???
????char?*b_name*s_name;???
????struct?student?*head_student*p_student;???
????int?studnum;???
????int?size_student=sizeof（struct?student）;???
	int?choice;
	
loop:
	printf（“\n\t\t\t〓〓〓〓〓圖書(shū)管理系統(tǒng)〓〓〓〓〓\n\n“）;???
	printf（“\n“）;???
	printf（“please?choice?your?position?:\n“）;
	printf（“\t\t\t[1]:管理員\t“）;
	printf（“\n\n\n“）;
	printf（“\t\t\t[2]:學(xué)生\t“）;
	printf（“\n\n\n“）;
	printf（“\t\t\t[0]:退出\n\n“）;?
	printf（“\n\n\n“）;
	printf（“第一次進(jìn)入圖書(shū)管理系統(tǒng)請(qǐng)先選1!!!\n\n“）;
	printf（“請(qǐng)選擇<0--2>:\n“）;
	scanf（“%d“&choice）;
	printf（“\n\t\t\t〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓\n\n\n\n“）;?
	while（choice!=0）
	{
		switch（choice）
		{
loopg:	case?1:
		printf（“1.新增書(shū)庫(kù)和學(xué)生庫(kù)\n\n“）;
		printf（“2.增加圖書(shū)\n\n“）;???
		printf（“3.刪除圖書(shū)\n\n“）;?
		printf（“4.查看所有學(xué)生信息\n\n“）;
		printf（“5.查找學(xué)生\n\n“）;
		printf（“6.增加學(xué)生\n\n“）;
		printf（“0.返回主菜單\n\n“）;
		printf（“第一次進(jìn)入圖書(shū)管理系統(tǒng)請(qǐng)先選1!!!\n\n“）;
		printf（“請(qǐng)選擇:\n\n“）;?
		scanf（“%d“&h）;
		system（“cls“）;?
		if?（h==1）
		{
			printf（“\n歡迎您第一次進(jìn)入圖書(shū)管理系統(tǒng)!\n\n“）;???
			printf（“----->[向?qū)----->[新建圖書(shū)庫(kù)]\n\n“）;???
			printf（“注意:當(dāng)輸入圖書(shū)編號(hào)為0時(shí)進(jìn)入下一步.\n\n“）;???
			head_book=Create_New_Book（）;???
			
			printf（“\n歡迎您第一次進(jìn)入圖書(shū)管理系統(tǒng)!\n\n“）;???
			printf（“----->[向?qū)----->[新建學(xué)生庫(kù)]\n\n“）;???
			printf（“注意:當(dāng)輸入學(xué)生學(xué)號(hào)為0時(shí)進(jìn)入主菜單.\n\n“）;???
			head_student=Creat