学步园

这是本人大一第二学期初C语言课程设计的作品，嘿嘿，本来以为已经找不到原稿了，今天无意中竟然在QQ网络硬盘中找到了当初的teta版，发布于此，以作纪念。

C源代码如下：

#include<stdio.h><br /> #include<stdlib.h><br /> #include<string.h><br /> struct book{<br /> char book_name[30];<br /> int bianhao;<br /> double price;<br /> char author[20];<br /> char state[20];<br /> char name[20];<br /> char sex[10];<br /> int xuehao;<br /> struct book *book_next;<br /> };<br /> struct club{<br /> char name[20];<br /> char sex[10];<br /> int xuehao;<br /> char borrow[30];<br /> struct club *club_next;<br /> };<br /> void Print_Book(struct book *head_book);/*浏览所有图书信息*/<br /> void Print_Club(struct club *head_club);/*浏览所有会员信息*/<br /> struct book *Create_New_Book();/*创建新的图书库，图书编号输入为0时结束*/<br /> struct book *Search_Book_bianhao(int bianhao,struct book *head_book);<br /> struct book *Search_Book_name(char *b_name,struct book *head_book);<br /> struct book *Search_Book_price(double price_h,double price_l,struct book *head_book);<br /> struct book *Insert_Book(struct book *head_book,struct book *stud_book);/*增加图书，逐个添加*/<br /> struct book *Delete_Book(struct book *head_book,int bianhao);/*删除图书*/<br /> struct club *Create_New_Club();<br /> struct club *Search_Club_xuehao(int xuehao,struct club *head_club);<br /> struct club *Search_Club_name(char *c_name,struct club *head_club);<br /> struct club *Insert_Club(struct club *head_club,struct club *stud_club);<br /> struct club *Delete_Club(struct club *head_club,int xuehao);<br /> struct book *Lent_Book(int bianhao,int xuehao,struct book *head_book,struct club *head_club);<br /> struct book *back(int bianhao,int xuehao,struct book *head_book,struct club *head_club);<br /> int main()<br /> {<br /> struct book *head_book,*p_book;<br /> char book_name[30],name[20],author[20],sex[10];<br /> int bianhao;<br /> double price,price_h,price_l;<br /> int size_book=sizeof(struct book);<br /> int m=1,n=1,f;<br /> char *b_name,*c_name;<br /> struct club *head_club,*p_club;<br /> int xuehao;<br /> int size_club=sizeof(struct club);</p> <p> int choice;<br /> printf("/n欢迎您第一次进入图书管理系统!/n/n");<br /> printf("----->[向导]----->[新建图书库]/n/n");<br /> printf("注意:当输入图书编号为0时,进入下一步./n/n");<br /> head_book=Create_New_Book();<br /> system("cls");<br /> printf("/n欢迎您第一次进入图书管理系统!/n/n");<br /> printf("----->[向导]----->[新建会员库]/n/n");<br /> printf("注意:当输入会员学号为0时,进入主菜单./n/n");<br /> head_club=Create_New_Club();<br /> system("cls");<br /> do{<br /> printf("/n/t/t/t〓〓〓〓〓图书管理系统〓〓〓〓〓/n/n");<br /> printf("/n");<br /> printf("/t/t/t[1]:借书办理/t");printf(" [6]:还书办理/n");<br /> printf("/n");<br /> printf("/t/t/t[2]:查询图书/t");printf(" [7]:查询会员/n");<br /> printf("/t/t/t[3]:添加图书/t");printf(" [8]:添加会员/n");<br /> printf("/t/t/t[4]:删除图书/t");printf(" [9]:删除会员/n");<br /> printf("/t/t/t[5]:遍历图书/t");printf("[10]:遍历会员/n/n");<br /> printf("/t/t/t〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓〓/n/n");<br /> printf("/t/t/t0:退出/n/n");<br /> printf("请选择<0~10>:");<br /> scanf("%d",&choice);<br /> switch(choice){<br /> case 1:<br /> printf("/n/t/t/t〓〓〓〓〓图书管理系统〓〓〓〓〓/n/n");<br /> printf("输入所借图书编号:/n");<br /> scanf("%d",&bianhao);<br /> printf("输入借书人的学号:/n");<br /> scanf("%d",&xuehao);<br /> head_book=Lent_Book(bianhao,xuehao,head_book,head_club);<br /> system("cls");<br /> printf("/n借阅成功!/n/n");<br /> printf("相关信息如下:/n/n");<br /> head_book=Search_Book_bianhao(bianhao,head_book);<br /> break;<br /> case 2:<br /> system("cls");<br /> printf("/n/t/t/t〓〓〓〓〓图书管理系统〓〓〓〓〓/n/n");<br /> printf("1.按编号查询/n/n");<br /> printf("2.按名称查询/n/n");<br /> printf("3.按价格区间查询/n/n");<br /> printf("0.返回主菜单/n/n");<br /> printf("请选择:");<br /> scanf("%d",&f);<br /> if(f==1){<br /> printf("请输入查询图书编号:");<br /> scanf("%d",&bianhao);<br /> printf("相关信息如下:/n/n");<br /> head_book=Search_Book_bianhao(bianhao,head_book);<br /> break;<br /> }<br /> else if(f==2){<br /> b_name=book_name;<br /> getchar();<br /> printf("请输入查询图书名称:");<br /> gets(b_name);<br /> printf("相关信息如下:/n/n");<br /> head_book=Search_Book_name(b_name,head_book);<br /> break;<br /> }<br /> else if(f==3){<br /> printf("请输入最高价格:");<br /> scanf("%lf",&price_h);<br /> printf("请输入最低价格:");<br /> scanf("%lf",&price_l);<br /> printf("相关信息如下:/n/n");<br /> head_book=Search_Book_price(price_h,price_l,head_book);<br /> break;<br /> }<br /> else if(f==0){<br /> break;<br /> }<br /> break;<br /> case 6:<br /> printf("/n/t/t/t〓〓〓〓〓图书管理系统〓〓〓〓〓/n/n");<br /> printf("输入所还图书编号:/n");<br /> scanf("%d",&bianhao);<br /> printf("输入还书人的学号:/n");<br /> scanf("%d",&xuehao);<br /> head_book=back(bianhao,xuehao,head_book,head_club);<br /> system("cls");<br /> printf("/n归还成功!/n/n");<br /> printf("相关信息如下:/n/n");<br /> head_book=Search_Book_bianhao(bianhao,head_book);<br /> break;<br /> case 3:<br /> system("cls");<br /> printf("/n/t/t/t〓〓〓〓〓图书管理系统〓〓〓〓〓/n/n");<br /> printf("请输入图书名称:");<br /> scanf("%s",book_name);<br /> printf("请输入图书编号:");<br /> scanf("%d",&bianhao);<br /> printf("请输入单价:");<br /> scanf("%lf",&price);<br /> printf("请输入作者名字:");<br /> scanf("%s",author);<br /> printf("/n");<br /> struct book *ptr_b;<br /> for(ptr_b=head_book;ptr_b;ptr_b=ptr_b->book_next)<br /> {<br /> if(ptr_b->bianhao==bianhao)<br /> {<br /> printf("此编号图书已存在/n");<br /> m=0;<br /> break;<br /> }<br /> }<br /> if(m){<br /> p_book=(struct book *)malloc(size_book);<br /> strcpy(p_book->book_name,book_name);<br /> p_book->bianhao=bianhao;<br /> p_book->price=price;<br /> p_book->xuehao=0;<br /> strcpy(p_book->author,author);<br /> strcpy(p_book->state,"存在");<br /> strcpy(p_book->sex,"待定");<br /> strcpy(p_book->name,"待定");<br /> head_book=Insert_Book(head_book,p_book);<br /> printf("/n添加图书成功!/n/n");<br /> }<br /> break;<br /> case 4:<br /> system("cls");<br /> printf("/n/t/t/t〓〓〓〓〓图书管理系统〓〓〓〓〓/n/n");<br /> printf("输入删除图书编号:/n");<br /> scanf("%d",&bianhao);<br /> head_book=Delete_Book(head_book,bianhao);<br /> printf("/n删除图书成功!/n/n");<br /> break;<br /> case 5:<br /> system("cls");<br /> printf("/n/t/t/t〓〓〓〓〓图书管理系统〓〓〓〓〓/n/n");<br /> Print_Book(head_book);<br /> break;<br /> case 7:<br /> system("cls");<br /> printf("/n/t/t/t〓〓〓〓〓图书管理系统〓〓〓〓〓/n/n");<br /> printf("1.按学号查询/n/n");<br /> printf("2.按姓名查询/n/n");<br /> printf("0.返回主菜单/n/n");<br /> printf("请选择:");<br /> scanf("%d",&f);<br /> if(f==1){<br /> printf("请输入查询会员学号:");<br /> scanf("%d",&xuehao);<br /> printf("相关信息如下:/n/n");<br /> head_club=Search_Club_xuehao(xuehao,head_club);<br /> break;<br /> }<br /> else if(f==2){<br /> c_name=name;<br /> getchar();<br /> printf("请输入查询会员姓名:");<br /> gets(c_name);<br /> printf("相关信息如下:/n/n");<br /> head_club=Search_Club_name(c_name,head_club);<br /> break;<br /> }<br /> else if(f==0){<br /> break;<br /> }<br /> break;<br /> printf("请输入查询会员学号:/n");<br /> scanf("%d",&xuehao);<br /> printf("相关信息如下:/n/n");</p> <p> break;<br /> case 8:<br /> system("cls");<br /> printf("/n/t/t/t〓〓〓〓〓图书管理系统〓〓〓〓〓/n/n");<br /> printf("请输入会员名字:");<br /> scanf("%s",name);<br /> printf("请输入会员性别:");<br /> scanf("%s",sex);<br /> printf("请输入会员学号:");<br /> scanf("%d",&xuehao);<br /> printf("/n");<br /> struct club *ptr_c;<br /> for(ptr_c=head_club;ptr_c;ptr_c=ptr_c->club_next)<br /> {<br /> if(ptr_c->xuehao==xuehao)<br /> {<br /> printf("此学号会员已存在/n");<br /> n=0;<br /> break;<br /> }<br /> }<br /> if(n){<br /> p_club=(struct club *)malloc(sizeof(struct club));<br /> strcpy(p_club->name,name);<br /> strcpy(p_club->sex,sex);<br /> p_club->xuehao=xuehao;<br /> strcpy(p_club->borrow,"暂无");<br /> head_club=Insert_Club(head_club,p_club);<br /> printf("/n添加会员成功!/n/n");<br /> }<br /> break;<br /> case 9:<br /> system("cls");<br /> printf("/n/t/t/t〓〓〓〓〓图书管理系统〓〓〓〓〓/n/n");<br /> printf("输入要删除会员学号:/n");<br /> scanf("%d",&xuehao);<br /> head_club=Delete_Club(head_club,xuehao);<br /> printf("/n删除会员成功!/n/n");<br /> break;<br /> case 10:<br /> system("cls");<br /> printf("/n/t/t/t〓〓〓〓〓图书管理系统〓〓〓〓〓/n/n");<br /> Print_Club(head_club);<br /> break;<br /> case 0:<br /> system("cls");<br /> printf("/n/t/t/t〓〓〓〓〓图书管理系统〓〓〓〓〓/n/n");<br /> printf("/n谢谢您的使用!/n/n");<br /> break;<br /> }<br /> }while(choice!=0);</p> <p> return 0;<br /> }<br /> struct book *Create_New_Book()<br /> {<br /> struct book *head_book,*p_book;<br /> int bianhao;<br /> double price;<br /> char book_name[30],author[20];<br /> int size_book=sizeof(struct book);</p> <p> head_book=NULL;<br /> printf("请输入图书名称:");<br /> scanf("%s",book_name);<br /> printf("请输入图书编号:");<br /> scanf("%d",&bianhao);<br /> printf("请输入单价:");<br /> scanf("%lf",&price);<br /> printf("请输入作者名字:");<br /> scanf("%s",author);<br /> printf("/n");<br /> while(bianhao!=0){<br /> p_book=(struct book *)malloc(size_book);<br /> strcpy(p_book->book_name,book_name);<br /> p_book->bianhao=bianhao;<br /> p_book->price=price;<br /> p_book->xuehao=0;<br /> strcpy(p_book->author,author);<br /> strcpy(p_book->state,"存在");<br /> strcpy(p_book->sex,"待定");<br /> strcpy(p_book->name,"待定");<br /> head_book=Insert_Book(head_book,p_book);<br /> printf("请输入图书名称:");<br /> scanf("%s",book_name);<br /> printf("请输入图书编号:");<br /> scanf("%d",&bianhao);<br /> printf("请输入单价:");<br /> scanf("%lf",&price);<br /> printf("请输入作者名字:");<br /> scanf("%s",author);<br /> printf("/n");<br /> }</p> <p> return head_book;<br /> }<br /> struct book *Search_Book_bianhao(int bianhao,struct book *head_book)<br /> {<br /> struct book *ptr_book;<br /> int flag=0;<br /> for(ptr_book=head_book;ptr_book;ptr_book=ptr_book->book_next)<br /> {<br /> if(ptr_book->bianhao==bianhao){<br /> printf("图书编号:%d/n",ptr_book->bianhao);<br /> printf("图书名称:%s/n",ptr_book->book_name);<br /> printf("图书单价:%.2lf/n",ptr_book->price);<br /> printf("图书作者:%s/n",ptr_book->author);<br /> printf("存在状态:%s/n",ptr_book->state);<br /> printf("借书人姓名:%s/n",ptr_book->name);<br /> printf("借书人性别:%s/n",ptr_book->sex);<br /> printf("学号:%d/n",ptr_book->xuehao);<br /> printf("/n");<br /> flag++;<br /> }<br /> }<br /> if(flag==0){<br /> printf("暂无此图书信息!/n/n");<br /> }<br /> return head_book;<br /> }<br /> struct book *Search_Book_name(char *b_name,struct book *head_book)<br /> {<br /> struct book *ptr_book;<br /> int flag=0;<br /> for(ptr_book=head_book;ptr_book;ptr_book=ptr_book->book_next)<br /> {<br /> if(strcmp(ptr_book->book_name,b_name)==0){<br /> printf("图书编号:%d/n",ptr_book->bianhao);<br /> printf("图书名称:%s/n",ptr_book->book_name);<br /> printf("图书单价:%.2lf/n",ptr_book->price);<br /> printf("图书作者:%s/n",ptr_book->author);<br /> printf("存在状态:%s/n",ptr_book->state);<br /> printf("借书人姓名:%s/n",ptr_book->name);<br /> printf("借书人性别:%s/n",ptr_book->sex);<br /> printf("学号:%d/n",ptr_book->xuehao);<br /> printf("/n");<br /> flag++;<br /> }<br /> }<br /> if(flag==0){<br /> printf("暂无此图书信息!/n/n");<br /> }<br /> return head_book;<br /> }<br /> struct book *Search_Book_price(double price_h,double price_l,struct book *head_book)<br /> {<br /> struct book *ptr_book;<br /> int flag=0;<br /> for(ptr_book=head_book;ptr_book;ptr_book=ptr_book->book_next)<br /> {<br /> if((ptr_book->price>=price_l)&&(ptr_book->price<=price_h)){<br /> printf("图书编号:%d/n",ptr_book->bianhao);<br /> printf("图书名称:%s/n",ptr_book->book_name);<br /> printf("图书单价:%.2lf/n",ptr_book->price);<br /> printf("图书作者:%s/n",ptr_book->author);<br /> printf("存在状态:%s/n",ptr_book->state);<br /> printf("借书人姓名:%s/n",ptr_book->name);<br /> printf("借书人性别:%s/n",ptr_book->sex);<br /> printf("学号:%d/n",ptr_book->xuehao);<br /> printf("/n");<br /> flag++;<br /> }<br /> }<br /> if(flag==0){<br /> printf("暂无此图书信息!/n/n");<br /> }<br /> return head_book;<br /> }<br /> struct book *Delete_Book(struct book *head_book,int bianhao)<br /> {<br /> struct book *ptr1_book,*ptr2_book;</p> <p> while(head_book!=NULL && head_book->bianhao==bianhao){<br /> ptr2_book=head_book;<br /> head_book=head_book->book_next;<br /> free(ptr2_book);<br /> }<br /> if(head_book==NULL)<br /> return NULL;</p> <p> ptr1_book=head_book;<br /> ptr2_book=head_book->book_next;<br /> while(ptr2_book!=NULL){<br /> if(ptr2_book->bianhao==bianhao){<br /> ptr1_book->book_next=ptr2_book->book_next;<br /> free(ptr2_book);<br /> }<br /> else<br /> ptr1_book=ptr2_book;<br /> ptr2_book=ptr1_book->book_next;<br /> }</p> <p> return head_book;<br /> }<br /> struct club *Create_New_Club()<br /> {<br /> struct club *head_club,*p_club;<br /> int xuehao;<br /> char name[20],sex[10];<br /> int size_club=sizeof(struct club);</p> <p> head_club=NULL;<br /> printf("请输入会员名字:");<br /> scanf("%s",name);<br /> printf("请输入会员性别:");<br /> scanf("%s",sex);<br /> printf("请输入会员学号:");<br /> scanf("%d",&xuehao);<br /> printf("/n");</p> <p> while(xuehao!=0){<br /> p_club=(struct club *)malloc(size_club);<br /> strcpy(p_club->name,name);<br /> strcpy(p_club->sex,sex);<br /> p_club->xuehao=xuehao;<br /> strcpy(p_club->borrow,"暂无");</p> <p> head_club=Insert_Club(head_club,p_club);</p> <p> printf("请输入会员名字:");<br /> scanf("%s",name);<br /> printf("请输入会员性别:");<br /> scanf("%s",sex);<br /> printf("请输入会员学号:");<br /> scanf("%d",&xuehao);<br /> printf("/n");<br /> }</p> <p> return head_club;<br /> }<br /> struct club *Search_Club_xuehao(int xuehao,struct club *head_club)<br /> {<br /> struct club *ptr_club;<br /> int flag=0;<br /> for(ptr_club=head_club;ptr_club;ptr_club=ptr_club->club_next)<br /> {<br /> if(ptr_club->xuehao==xuehao){<br /> printf("会员姓名:%s/n",ptr_club->name);<br /> printf("会员性别:%s/n",ptr_club->sex);<br /> printf("会员学号:%d/n",ptr_club->xuehao);<br /> printf("所借图书:%s/n",ptr_club->borrow);<br /> printf("/n");<br /> flag++;<br /> }<br /> }<br /> if(flag==0){<br /> printf("此用户不存在!/n/n");<br /> }<br /> return head_club;<br /> }<br /> struct club *Search_Club_name(char *c_name,struct club *head_club)<br /> {<br /> struct club *ptr_club;<br /> int flag=0;<br /> for(ptr_club=head_club;ptr_club;ptr_club=ptr_club->club_next)<br /> {<br /> if(strcmp(ptr_club->name,c_name)==0){<br /> printf("会员姓名:%s/n",ptr_club->name);<br /> printf("会员性别:%s/n",ptr_club->sex);<br /> printf("会员学号:%d/n",ptr_club->xuehao);<br /> printf("所借图书:%s/n",ptr_club->borrow);<br /> printf("/n");<br /> flag++;<br /> }<br /> }<br /> if(flag==0){<br /> printf("此用户不存在!/n/n");<br /> }<br /> return head_club;<br /> }<br /> struct book *Lent_Book(int bianhao,int xuehao,struct book *head_book,struct club *head_club)<br /> {<br /> struct book *ptr_book;<br /> struct club *ptr_club;<br /> int flag=0;</p> <p> for(ptr_book=head_book;ptr_book;ptr_book=ptr_book->book_next)<br /> for(ptr_club=head_club;ptr_club;ptr_club=ptr_club->club_next)<br /> {<br /> if((ptr_book->bianhao==bianhao)&&(ptr_club->xuehao==xuehao))<br /> {<br /> strcpy(ptr_book->name,ptr_club->name); /*字符串的复制，把右边的内容复制到左边*/<br /> strcpy(ptr_book->sex,ptr_club->sex);<br /> ptr_book->xuehao=ptr_club->xuehao;<br /> strcpy(ptr_book->state,"暂无");<br /> strcpy(ptr_club->borrow,ptr_book->book_name);<br /> flag++;<br /> }<br /> if(flag==0){<br /> printf("暂无此图书或您还未注册为会员!/n/n");<br /> }<br /> }</p> <p> return head_book;<br /> }<br /> struct book *back(int bianhao,int xuehao,struct book *head_book,struct club *head_club)<br /> {<br /> struct book *ptr_book;<br /> struct club *ptr_club;<br /> int flag=0;</p> <p> for(ptr_book=head_book;ptr_book;ptr_book=ptr_book->book_next)<br /> for(ptr_club=head_club;ptr_club;ptr_club=ptr_club->club_next)<br /> {<br /> if((ptr_book->bianhao==bianhao) && (ptr_club->xuehao==xuehao))<br /> {<br /> strcpy(ptr_book->name,"暂无");<br /> strcpy(ptr_book->sex,"待定");<br /> ptr_book->xuehao=0;<br /> strcpy(ptr_book->state,"暂无");<br /> strcpy(ptr_club->borrow,"暂无");<br /> flag++;<br /> }<br /> if(flag==0){<br /> printf("输入有误，请重试/n/n");<br /> }<br /> }</p> <p> return head_book;<br /> }<br /> struct book *Insert_Book(struct book *head_book,struct book *stud_book)<br /> {<br /> struct book *ptr_b,*ptr1_b,*ptr2_b;<br /> ptr2_b=head_book;<br /> ptr_b=stud_book;<br /> if(head_book==NULL){<br /> head_book=ptr_b;<br /> head_book->book_next=NULL;<br /> }<br /> else{<br /> while((ptr_b->bianhao > ptr2_b->bianhao) && (ptr2_b->book_next!=NULL)){<br /> ptr1_b=ptr2_b;<br /> ptr2_b=ptr2_b->book_next;<br /> }<br /> if(ptr_b->bianhao <= ptr2_b->bianhao){<br /> if(head_book==ptr2_b) head_book=ptr_b;<br /> else ptr1_b->book_next=ptr_b;<br /> ptr_b->book_next=ptr2_b;<br /> }<br /> else{<br /> ptr2_b->book_next=ptr_b;<br /> ptr_b->book_next=NULL;<br /> }<br /> }<br /> return head_book;<br /> }<br /> struct club *Insert_Club(struct club *head_club,struct club *stud_club)<br /> {<br /> struct club *ptr_c,*ptr1_c,*ptr2_c;<br /> ptr2_c=head_club;<br /> ptr_c=stud_club;<br /> if(head_club==NULL){<br /> head_club=ptr_c;<br /> head_club->club_next=NULL;<br /> }<br /> else{<br /> while((ptr_c->xuehao > ptr2_c->xuehao) && (ptr2_c->club_next!=NULL)){<br /> ptr1_c=ptr2_c;<br /> ptr2_c=ptr2_c->club_next;<br /> }<br /> if(ptr_c->xuehao <= ptr2_c->xuehao){<br /> if(head_club==ptr2_c) head_club=ptr_c;<br /> else ptr1_c->club_next=ptr_c;<br /> ptr_c->club_next=ptr2_c;<br /> }<br /> else{<br /> ptr2_c->club_next=ptr_c;<br /> ptr_c->club_next=NULL;<br /> }<br /> }<br /> return head_club;<br /> }<br /> void Print_Club(struct club *head_club)<br /> {<br /> struct club *ptr_c;<br /> if(head_club==NULL){<br /> printf("/n无记录/n/n");<br /> return;<br /> }<br /> printf("/n会员姓名/t会员性别/t会员学号/n/n");<br /> for(ptr_c=head_club;ptr_c;ptr_c=ptr_c->club_next)<br /> printf("%s/t/t%s/t/t%d/n",ptr_c->name,ptr_c->sex,ptr_c->xuehao);<br /> }<br /> struct club *Delete_Club(struct club *head_club,int xuehao)<br /> {<br /> struct club *ptr1_club,*ptr2_club;</p> <p> while(head_club!=NULL && head_club->xuehao==xuehao){<br /> ptr2_club=head_club;<br /> head_club=head_club->club_next;<br /> free(ptr2_club);<br /> }<br /> if(head_club==NULL)<br /> return NULL;</p> <p> ptr1_club=head_club;<br /> ptr2_club=head_club->club_next;<br /> while(ptr2_club!=NULL){<br /> if(ptr2_club->xuehao==xuehao){<br /> ptr1_club->club_next=ptr2_club->club_next;<br /> free(ptr2_club);<br /> }<br /> else<br /> ptr1_club=ptr2_club;<br /> ptr2_club=ptr1_club->club_next;<br /> }</p> <p> return head_club;<br /> }<br /> void Print_Book(struct book *head_book)<br /> {<br /> struct book *ptr_b;<br /> if(head_book==NULL){<br /> printf("/n无记录/n/n");<br /> return;<br /> }<br /> printf("/n图书编号/t图书名称/t图书单价/t图书作者/n/n");<br /> for(ptr_b=head_book;ptr_b;ptr_b=ptr_b->book_next)<br /> printf("%d/t/t%s/t/t%.2lf/t/t%s/n/n",ptr_b->bianhao,ptr_b->book_name,ptr_b->price,ptr_b->author);<br /> }