c语言编程.doc

#include#include#includestruct mbook char number10; /书号char name20; /书名char author20; /作者char publish50; /出版社int num; /数量float price; /价格;struct mlibraryint count; /书的本数struct mbook book200; /最大可有100本书library;void save() /保存教材信息。FILE *fp;if(fp=fopen(library.doc,w)=NULL)printf(n不能保存教材信息n);return;fwrite(&library.count,sizeof(int),1,fp);fwrite(library.book,sizeof(library.book0),library.count,fp);fclose(fp);void buy()int n,i;char name20;printf(请输入要购入的书名:n);scanf(%s,name);for(i=0;ilibrary.count;i+ )if(strcmp(name,)=0)printf(请输入要购入的数量:n); scanf(%d,&n); library.booki.num+=n;save();else int y=1,len=8;system(cls);while(y) printf(t请输入您的书籍的书号:);scanf(%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请输入要购买的数量:);scanf(%d,library.booklibrary.count.num);printf(t请输入出版社:);scanf(%s,library.booklibrary.count.publish);printf(t请输入该书的价格:);fflush(stdin);scanf(%f,&library.booklibrary.count.price);library.count+;fflush(stdin);scanf(%d,&y);if (y!=1)y=0;break;save();void putin() /定义录入函数 int y=1,len=8;system(cls);while(y) printf(t请输入您的书籍的书号:);scanf(%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);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;break;save();void search_by_name() /定义按书名查询 register int i;char s220; int flag=1;printf(n请输入要查询的书名: );fflush(stdin);scanf(%s,s2);printf(教材号t教材名t作者名t出版社t数量t教材价格n);for(i=0;ilibrary.count;i+ )if(strcmp(s2,)=0) flag=0;printf(%st%st%st%st%dt%6.2fn,library.booki.number,,library.booki.author,library.booki.publish,library.booki.num,library.booki.price); if (flag)printf(cannot found!);fflush(stdin);getchar();void search_by_author() /定义按作者名查询register int i; char s320;int flag=1;printf(请输入要查询的书的作者: );fflush(stdin);scanf(%s,s3);printf(教材号t教材名t作者名t出版社t数量t教材价格n);for(i=0;ilibrary.count;i+ )if(strcmp(s3,library.booki.author)=0) flag=0;printf(%st%st%st%st%dt%6.2fn,library.booki.number,,library.booki.author,library.booki.publish,library.booki.num,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);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 update() /修改教材信息register int i;char number10;system(cls); /清屏printf(n Please type in the number of the book you want to update:);fflush(stdin);scanf(%s,number);for (i=0;ilibrary.count;i+)if(strcmp(number,library.booki.number)=0)printf(教材号t教材名t作者名t出版社t数量t教材价格n);printf(%st%st%st%st%dt%6.2fn,library.booki.number,,library.booki.author,library.booki.publish,library.booki.num,library.booki.price);break;if (i!=library.count)int len=8;struct mbook book;printf(ntt请输入修改后此教材的信息n);printf(t请输入教材号:);scanf(%s,book.number);printf(t请输入教材名:);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);library.booki.price=book.price;save();elseprintf(n cannot found!n);fflush(stdin);getchar();void menu()printf(nnnnntttt教材信息管理系统ttttn);printf(tt*n);printf(ttt1 -教材信息录入n);printf(ttt2 -教材信息查询n);printf(ttt3 -教材信息修改n);printf(ttt4 -教材购入n);printf(ttt0 -退出教材信息系统n);printf(tt*n);printf(ttPlease Enter Choose: );fflush(stdin);void main