c语言 图书馆管理系统.docx

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#include#include#include#includestruct studentinformchar name30,key30,book130,book230,book330;stud1000;struct bookinformchar num30,name30,author30,company30,type30,time30,price30;int count;book10000;void lendedbook(char sname,char key)/*已借图书*/system(cls);FILE *fp;int i;printf(亲爱的%s同学，欢迎进入我的图书馆nn,sname);if(fp=fopen(student.txt,rb)=NULL)printf(File open error!n);exit(0);for(i=0;fread(&studi,sizeof(struct studentinform),1,fp)!=0;i+)if(strcmp(,sname)=0&strcmp(studi.key,key)=0)if(strcmp(studi.book1,无)=0&strcmp(studi.book2,无)=0&strcmp(studi.book3,无)=0)printf(您当前没有借书);elseprintf(已借图书为：%s%s%s,studi.book1,studi.book2,studi.book3);i=1000;if(fclose(fp)printf(Can not close the file!n);exit(0);printf(n以上是您的借阅信息，按任意键返回);getch();void handbook(char sname,char key)/*还书*/system(cls);FILE *fp,*cfp,*fp1,*fp2,*fp3;char hname30;int i,n,j,x;n=0,j=0;printf(亲爱的%s同学，欢迎进入我的图书馆nn,sname);if(fp3=fopen(student.txt,rb)=NULL)printf(File open error!n);exit(0);for(i=0;fread(&studi,sizeof(struct studentinform),1,fp3)!=0;i+)if(strcmp(,sname)=0&strcmp(studi.key,key)=0)if(strcmp(studi.book1,无)=0&strcmp(studi.book2,无)=0&strcmp(studi.book3,无)=0)printf(您当前没有借书);x=0;elseprintf(已借图书为：%s%s%s,studi.book1,studi.book2,studi.book3);x=1;i=1000;if(fclose(fp3)printf(Can not close the file!n);exit(0);if(x)printf(n请输入您要归还的图书名：);scanf(%s,hname);if(fp=fopen(student.txt,rb)=NULL)printf(file open error!n);exit(0);if(cfp=fopen(cstudent.txt,wb)=NULL)printf(file open error!n);exit(0);for(i=0;fread(&studi,sizeof(struct studentinform),1,fp)!=0;i+)if(!strcmp(sname,)if(!strcmp(studi.book1,hname)strcpy(studi.book1,无);n+,j=1;if(!strcmp(studi.book2,hname)strcpy(studi.book2,无);n+,j=1;if(!strcmp(studi.book3,hname)strcpy(studi.book3,无);n+,j=1;fwrite(&studi,sizeof(struct studentinform),1,cfp);elsefwrite(&studi,sizeof(struct studentinform),1,cfp);if(fclose(fp)printf(Can not close the file!n);exit(0);if(fclose(cfp)printf(Can not close the file!n);exit(0);if(j)if(fp2=fopen(cbook_information.txt,wb)=NULL)printf(file open error!n);exit(0);if(fp1=fopen(book_information.txt,rb)=NULL)printf(file open error!n);exit(0);for(i=0;fread(&booki,sizeof(struct bookinform),1,fp1)!=0;i+) if(!strcmp(hname,)booki.count=booki.count+n;fwrite(&booki,sizeof(struct bookinform),1,fp2);if(fclose(fp1)printf(Can not close the file!n);exit(0);if(fclose(fp2)printf(Can not close the file!n);exit(0);if(fp=fopen(student.txt,wb)=NULL)printf(file open error!n);exit(0);if(cfp=fopen(cstudent.txt,rb)=NULL)printf(file open error!n);exit(0);for(i=0;fread(&studi,sizeof(struct studentinform),1,cfp)!=0;i+)fwrite(&studi,sizeof(struct studentinform),1,fp);if(fclose(fp)printf(Can not close the file!n);exit(0);if(fclose(cfp)printf(Can not close the file!n);exit(0);if(fp=fopen(student.txt,wb)=NULL)printf(file open error!n);exit(0);if(cfp=fopen(cstudent.txt,rb)=NULL)printf(file open error!n);exit(0);for(i=0;fread(&booki,sizeof(struct studentinform),1,cfp)!=0;i+) fwrite(&studi,sizeof(struct studentinform),1,fp);if(fclose(fp)printf(Can not close the file!n);exit(0);if(fclose(cfp)printf(Can not close the file!n);exit(0);if(fp2=fopen(cbook_information.txt,rb)=NULL)printf(file open error!n);exit(0);if(fp1=fopen(book_information.txt,wb)=NULL)printf(file open error!n);exit(0);for(i=0;fread(&booki,sizeof(struct bookinform),1,fp2)!=0;i+) fwrite(&booki,sizeof(struct bookinform),1,fp1);if(fclose(fp1)printf(Can not close the file!n);exit(0);if(fclose(fp2)printf(Can not close the file!n);exit(0);printf(n书已经归还,按任意键返回);elseprintf(n对不起，您没有借此书);elseprintf(n所以您不需要归还任何图书,按任意键返回);getch();void lendbook(char sname,char key)/*借阅图书*/system(cls);char name30;int i,n,j;n=3,j=0;FILE *fp,*cfp,*fp1,*fp2;printf(亲爱的%s同学，欢迎进入我的图书馆nn,sname);if(fp=fopen(student.txt,rb)=NULL)printf(file open error!n);exit(0);if(cfp=fopen(cstudent.txt,wb)=NULL)printf(file open error!n);exit(0);for(i=0;fread(&studi,sizeof(struct studentinform),1,fp)!=0;i+)if(!strcmp(sname,)if(!strcmp(studi.book1,无)n-;if(!strcmp(studi.book2,无)n-;if(!strcmp(studi.book3,无)n-;if(fclose(fp)printf(Can not close the file!n);exit(0);if(fclose(cfp)printf(Can not close the file!n);exit(0);if(n0)booki.count-;fwrite(&booki,sizeof(struct bookinform),1,fp2);j=1;elsej=2;elsefwrite(&booki,sizeof(struct bookinform),1,fp2); if(fclose(fp1)printf(Can not close the file!n);exit(0);if(fclose(fp2)printf(Can not close the file!n);exit(0);if(j=2)printf(对不起，%s已经被借完,name);if(j=1)if(fp1=fopen(book_information.txt,wb)=NULL)printf(File open error!n);exit(0);if(fp2=fopen(cbook_information.txt,rb)=NULL)printf(File open error!n);exit(0);for(i=0;fread(&booki,sizeof(struct bookinform),1,fp2)!=0;i+) fwrite(&booki,sizeof(struct bookinform),1,fp1); if(fclose(fp1)printf(Can not close the file!n);exit(0);if(fclose(fp2)printf(Can not close the file!n);exit(0);if(fp=fopen(student.txt,rb)=NULL)printf(file open error!n);exit(0);if(cfp=fopen(cstudent.txt,wb)=NULL)printf(file open error!n);exit(0);for(i=0;fread(&studi,sizeof(struct studentinform),1,fp)!=0;i+)if(!strcmp(sname,)if(!strcmp(studi.book1,无)strcpy(studi.book1,name);else if(!strcmp(studi.book2,无)strcpy(studi.book2,name);else if(!strcmp(studi.book3,无)strcpy(studi.book3,name);fwrite(&studi,sizeof(struct studentinform),1,cfp);elsefwrite(&studi,sizeof(struct studentinform),1,cfp); if(fclose(fp)printf(Can not close the file!n);exit(0);if(fclose(cfp)printf(Can not close the file!n);exit(0);if(fp=fopen(student.txt,wb)=NULL)printf(file open error!n);exit(0);if(cfp=fopen(cstudent.txt,rb)=NULL)printf(file open error!n);exit(0);for(i=0;fread(&studi,sizeof(struct studentinform),1,cfp)!=0;i+)fwrite(&studi,sizeof(struct studentinform),1,fp);if(fclose(fp)printf(Can not close the file!n);exit(0);if(fclose(cfp)printf(Can not close the file!n);exit(0);printf(n操作成功，按任意键返回);if(j=0)printf(n对不起，没有与“%s”匹配的图书信息，请查看是否输入有误,按任意键返回！,name);getch();if(n=3)printf(n对