语言版图书管理系统

1、#include<stdio.h>#include<stdlib.h>#include<string.h>typedef struct char number10;/书号char name20;/书名char author20;/作者char publish50;/出版社char time20;/出版时间float price;mbook;typedef struct int count;/书的本数mbook book100;/最大可有100本书mlibrary;mlibrary library;void save()/保存图书信息。FILE *fp;if(

2、fp=fopen("library.doc","w")=NULL)printf("n不能保存图书信息n");return;fwrite(&library.count,sizeof(int),1,fp);fwrite(library.book,sizeof(library.book0),library.count,fp);void putin() /*定义录入函数*/ int y=1;system("cls");while(y) printf("t请输入您的书籍的书号:");scanf(&

3、quot;%s",library.booklibrary.count.number);printf("t请输入书名:");scanf("%s",);printf("t请输入作者名:");scanf("%s",library.booklibrary.count.author);printf("t请输入出版社:");scanf("%s",library.booklibrary.count.publish);pr

4、intf("t请输入出版时间:");scanf("%s",library.booklibrary.count.time);printf("t请输入该书的价格:");fflush(stdin);scanf("%f",&library.booklibrary.count.price);library.count+;printf("n是否继续录入(1.继续;0,退出录入):");fflush(stdin);scanf("%d",&y);if (y!=1)y=0;br

5、eak; save();void lookup()system("cls");int i;printf("图书号t图书名t作者名t出版社t出版日期t图书价格n");for(i=0;i<library.count;i+)printf("%st%st%st%st%st%6.2fn",library.booki.number,,library.booki.author,library.booki.publish,library.booki.time,library.booki.price);fflu

6、sh(stdin);getchar();void search_by_name() /*定义按书名查询*/ int i;char s220; int flag=1;printf("n请输入要查询的书名: ");fflush(stdin);scanf("%s",s2);printf("图书号t图书名t作者名t出版社t出版日期t图书价格n");for(i=0;i<library.count;i+ )if(strcmp(s2,)=0) flag=0;printf("%st%st%st%st

7、%st%6.2fn",library.booki.number,,library.booki.author,library.booki.publish,library.booki.time,library.booki.price); if (flag)printf("cannot found!");fflush(stdin);getchar();void search_by_author() /*定义按作者名查询*/ int i;char s320;int flag=1;printf("请输入要查询的书的作者: &qu

8、ot;);fflush(stdin);scanf("%s",s3);printf("图书号t图书名t作者名t出版社t出版日期t图书价格n");for(i=0;i<library.count;i+ )if(strcmp(s3,library.booki.author)=0) flag=0;printf("%st%st%st%st%st%6.2fn",library.booki.number,,library.booki.author,library.booki.publish,library.b

9、ooki.time,library.booki.price); if (flag)printf("cannot found!");fflush(stdin);getchar();void search() /*定义查询函数*/ int a;system("cls"); /*进行清屏*/ printf("tt*n");printf("开始查询n"); printf("ttt1-search_by_namen"); printf("ttt2-search_by_writern")

10、; printf("ttt0-exitn"); printf("tt*n") ; printf("tt请选择你想要的查询方式:");fflush(stdin); scanf("%d",&a); switch(a) case 1:search_by_name();break; case 2:search_by_author();break;case 0:return;void del() /*定义删除函数*/ char number10;system("cls"); /*清屏*/print

11、f("n Please type in the number of the book you want to delete:");fflush(stdin);scanf("%s",number);int i;for (i=0;i<library.count;i+)if(strcmp(number,library.booki.number)=0)break;if (i!=library.count)for(;i<library.count-1;i+)strcpy(,library.booki+1.name);

12、strcpy(library.booki.number,library.booki+1.number);strcpy(library.booki.publish,library.booki+1.publish);strcpy(library.booki.author,library.booki+1.author);strcpy(library.booki.time,library.booki+1.time);library.booki.price=library.booki+1.price;library.count-;elseprintf("n cannot found!n&quo

13、t;);save();fflush(stdin);getchar();void update()/修改图书信息char number10;system("cls"); /*清屏*/printf("n Please type in the number of the book you want to delete:");fflush(stdin);scanf("%s",number);int i;for (i=0;i<library.count;i+) if(strcmp(number,library.booki.number)=

14、0) printf("图书号t图书名t作者名t出版社t出版日期t图书价格n"); printf("%st%st%st%st%st%6.2fn",library.booki.number,,library.booki.author,library.booki.publish,library.booki.time,library.booki.price); break; if (i!=library.count)mbook book;printf("ntt请输入修改后此图书的信息n");printf(&

15、quot;t请输入图书号:");scanf("%s",book.number);printf("t请输入图书名:");scanf("%s",);printf("t请输入作者名:");scanf("%s",book.author);printf("t请输入出版社:");scanf("%s",book.publish);printf("t请输入出版时间:");scanf("%s",book.t

16、ime);printf("t请输入该书的价格:");fflush(stdin);scanf("%f",&book.price);strcpy(,);strcpy(library.booki.number,book.number);strcpy(library.booki.publish,book.publish);strcpy(library.booki.author,book.author);strcpy(library.booki.time,book.time);library.booki

17、.price=book.price;save();elseprintf("n cannot found!n");fflush(stdin);getchar();void main()FILE *fp;if(fp=fopen("library.doc","r")=NULL)printf("n不能打开图书信息库n");fp=fopen("library.doc","w+");printf("n初始化图书信息库,初始化之后要重启程序n");library.cou

18、nt=0;fwrite(&library.count,sizeof(int),1,fp);fclose(fp);return;fread(&library.count,sizeof(int),1,fp);fread(library.book,sizeof(library.book0),library.count,fp);fclose(fp);int a; do system("cls");printf("nnnnntttt图书信息管理系统ttttn");printf("tt*n");printf("ttt1 -图书信息录入n");printf("ttt2 -图书信息浏览n"); printf("ttt3 -图书信息查询n");printf("ttt4 -图书信息删除n");printf("ttt5 -图书信息修改n");printf("ttt0 -退出图书信息系统n");printf("tt*n");pri