小型图书管理系统C语言程序

1、小型图书管理系统C语言程序#include<stdio.h>#include<string.h>#include<stdlib.h>struct book char writer20; char title20; char publishinghouse20; char number10; float price; struct book * next;struct book * Create_Book();void Insert(struct book * head);void Delete(struct book * head);void Print_B

2、ook(struct book * head);void search_book(struct book * head);void change_Book(struct book * head);void save(struct book * head);struct book * Create_Book()struct book * head;head=(struct book *)malloc(sizeof(struct book);head->next=NULL;return head;void save(struct book * head)struct book *p;FILE

3、 *fp;p=head;fp=fopen("kucun.txt","w+");fprintf(fp,"*n");fprintf(fp,"书号t 书名t 作者t 出版社t 价格t n"); fprintf(fp," n");while(p->next!= NULL)p=p->next;fprintf(fp,"%st %st %st %st %.2ft n",p->number,p->title,p->writer,p->publishingh

4、ouse,p->price);fprintf(fp,"*n");fclose(fp);printf(" 已将图书数据保存到 kucun.txt 文件n");/插入/void Insert(struct book *head) struct book *s, *p,*p1,*swap; char flag='Y' swap=(struct book *)malloc(sizeof(struct book); p1=swap; p=head; while(flag='Y'|flag='y') s=(str

5、uct book *)malloc(sizeof(struct book); printf("n 请输入图书书号:"); fflush(stdin); scanf("%s",s->number); printf("n 请输入图书书名:"); fflush(stdin); scanf("%s",s->title); printf("n 请输入图书作者名:"); fflush(stdin); scanf("%s",s->writer); printf("

6、;n 请输入图书出版社:"); fflush(stdin); scanf("%s",s->publishinghouse); printf("n 请输入图书价格:"); fflush(stdin); scanf("%f",&s->price); printf("n");/排序/ p1=p->next; if(head->next!=NULL) do if(strcmp(p1->number),(s->number)>0) strcpy(swap->n

7、umber,p1->number); strcpy(swap->title,p1->title); strcpy(swap->writer,p1->writer); strcpy(swap->publishinghouse,p1->publishinghouse); swap->price=p1->price; strcpy(p1->number,s->number); strcpy(p1->title,s->title); strcpy(p1->writer,s->writer); strcpy(p1-

8、>publishinghouse,s->publishinghouse); p1->price=s->price; strcpy(s->number,swap->number); strcpy(s->title,swap->title); strcpy(s->writer,swap->writer); strcpy(s->publishinghouse,swap->publishinghouse); s->price=swap->price; p=p1; p1=p->next; while(p1!=NUL

9、L); p->next=s; s->next=NULL; printf(" * 添加成功！*"); printf("n 继续添加？(Y/N):"); fflush(stdin); scanf("%c",&flag); printf("n"); if(flag='N'|flag='n') break; else if(flag='Y'|flag='y') continue; save(head);/查找/void search_boo

10、k(struct book *head) struct book * p; char temp20; p=head; if(head=NULL | head->next=NULL) printf(" * 图书库为空！*n"); else printf("请输入您要查找的书名: "); fflush(stdin); scanf("%s",temp); while(p->next!= NULL) p=p->next; if(strcmp(p->title,temp)=0) printf("n图书已找到!n

11、"); printf("n"); printf("书号: %stn",p->number); printf("书名: %stn",p->title); printf("作者名: %stn",p->writer); printf("出版社: %stn",p->publishinghouse); printf("价格: %.2ftn",p->price); if(p->next=NULL) printf("n查询完毕!n&q

12、uot;); void Print_Book(struct book * head) struct book * p; if(head=NULL | head->next=NULL) printf("n * 没有图书记录! *nn"); p=head; printf("*n"); printf(" 书号t书名t作者t出版社t价格tn"); printf("*n"); while(p->next!= NULL) p=p->next; printf("%st%st%st%st%.2ftn&q

13、uot;,p->number,p->title,p->writer,p->publishinghouse,p->price); printf("*n"); printf("n");/更改/void change_Book(struct book * head)struct book * p;int panduan=0;char temp20;p=head;printf("请输入要修改图书的书号:");scanf("%s",temp);while(p->next!= NULL)p=

14、p->next;if(strcmp(p->number,temp)=0) printf("n 请输入图书书名:"); fflush(stdin); scanf("%s",p->title); printf("n 请输入图书作者名:"); fflush(stdin); scanf("%s",p->writer); printf("n 请输入图书出版社:"); fflush(stdin); scanf("%s",p->publishinghouse)

15、; printf("n 请输入图书价格:"); fflush(stdin); scanf("%f",&p->price); printf("n"); panduan=1; if(panduan=0) printf(" n*没有图书记录!*nn");/删除/void Delete(struct book *head) struct book *s,*p; char temp20; int panduan; panduan=0; p=s=head; printf(" 请输入您要删除的书名:&qu

16、ot;); scanf("%s",temp); p=p->next; while(p!= NULL) if(strcmp(p->title,temp)=0) panduan=1; break; p=p->next; if(panduan=1) while(s->next!=p) s=s->next; s->next=p->next; free(p); printf("n * 删除成功!*n"); save(head); else printf(" 您输入的书目不存在，请确认后输入!n"); /

17、主函数/void main() struct book * head; int choice; head=NULL; while(1) printf(" *n"); printf(" * 小型图书管理系统 *n"); printf(" * *n"); printf(" * 1图书信息录入 *n"); printf(" * *n"); printf(" * 2图书信息浏览 *n"); printf(" * *n"); printf(" * 3图书信

18、息查询 *n"); printf(" * *n"); printf(" * 4图书信息修改 *n"); printf(" * *n"); printf(" * 5图书信息删除 *n"); printf(" * *n"); printf(" * 6退出系统 *n"); printf(" *n"); printf(" 请选择:"); fflush(stdin); scanf("%d",&choice); switch (choice) case 1: if(head=NULL) head=Create_Book();