图书管理系统实训.doc

#include#include#include#define size 100typedef structlong number;/char name9;/char ps7;/int power;/huiyuan;typedef structlong number;/char name100;/float price;/float memberprice;/books;void initbooks()FILE *fp;books tmps,show;char datafile40=books;int count=0;fp=fopen(datafile,wb+);if(fp=NULL)printf(%sn,datafile);exit(1);printf(n);while(countsize)printf(n);fclose(fp);printf(:n);fp=fopen(datafile,rb);if(fp=NULL)printf(%sn,datafile);exit(1);printf(tttn);while(fread(&show,sizeof(books),1,fp)!=0)printf(%ldt%st%.1ft%.1fn,show.number,,show.price,show.memberprice);fclose(fp);void addbooks()FILE *fp;books tmps,show;char datafile40=books;int count=0;fp=fopen(datafile,ab+);if(fp=NULL)printf(%sn,datafile);exit(1);printf(n);while(countsize)printf(n);fclose(fp);printf(:n);fp=fopen(datafile,rb);if(fp=NULL)printf(%sn,datafile);exit(1);printf(tttn);while(fread(&show,sizeof(books),1,fp)!=0)printf(%ldt%st%.1ft%.1fn,show.number,,show.price,show.memberprice);fclose(fp);void modifybooks()FILE *fp;books tmps,ssize,show,temp;char name9,next,datafile40=books;int recnumber,i,result=0;float price;begin:printf();scanf(%s,name);fp=fopen(datafile,rb);if(fp=NULL)printf(%sn,datafile);exit(1);while(feof(fp)=0)if(fread(&temp,sizeof(books),1,fp)!=0)if(strcmp(,name)=0)result=1;if(result=0)printf(%sn,name);fclose(fp);goto begin;fp=fopen(datafile,rb);if(fp=NULL)printf(%sn,datafile);exit(1);recnumber=0;while(fread(&tmps,sizeof(books),1,fp)!=0)if(strcmp(,name)=0)printf(%s,name);scanf(%f,&price);srecnumber.number=tmps.number;strcpy(,);srecnumber.price=price;srecnumber.memberprice=price*0.8f;recnumber+;elsesrecnumber.number=tmps.number;strcpy(,);srecnumber.price=tmps.price;srecnumber.memberprice=tmps.price*0.8f;recnumber+;fclose(fp);fp=fopen(datafile,wb+);if(fp=NULL)printf(%sn,datafile);exit(1);for(i=0;irecnumber;i+)if(fwrite(&si,sizeof(books),1,fp)!=1)printf(%sn,datafile);exit(1);fclose(fp);printf(!n);printf(y/n)n);next=getchar();if(next=y|next=Y)goto begin;printf(:n);fp=fopen(datafile,rb);if(fp=NULL)printf(%sn,datafile);exit(1);printf(ttttn);while(fread(&show,sizeof(books),1,fp)!=0)printf(%ldt%st%.1ft%.1fn,show.number,,show.price,show.memberprice);fclose(fp);void delbooks()FILE *fp;books tmps,ssize,show,temp;char name10,next,datafile40=books;int recnumber,i,result=0;begin:printf();scanf(%s,name);fp=fopen(datafile,rb);if(fp=NULL)printf(%sn,datafile);exit(1);while(feof(fp)=0)if(fread(&temp,sizeof(books),1,fp)!=0)if(strcmp(,name)=0)result=1;if(result=0)printf(%sn,name);fclose(fp);goto begin;fclose(fp);fp=fopen(datafile,rb);if(fp=NULL)printf(%sn,datafile);exit(1);recnumber=0;while(fread(&tmps,sizeof(books),1,fp)!=0)if(strcmp(,name)!=0)srecnumber.number=tmps.number;strcpy(,);srecnumber.price=tmps.price;srecnumber.memberprice=tmps.price*0.8f;recnumber+;fclose(fp);fp=fopen(datafile,wb+);if(fp=NULL)printf(%sn,datafile);exit(1);for(i=0;i1)for(i=0;irecnumber-1;i+)k=i;for(j=i+1;jrecnumber;j+)if(sk.pricesj.price)k=j;tmps.number=sk.number;strcpy(,);tmps.price=sk.price;tmps.memberprice=sk.price*0.8f;sk.number=si.number;strcpy(,);sk.price=si.price;sk.memberprice=si.price*0.8f;si.number=tmps.number;strcpy(,);si.price=tmps.price;si.memberprice=tmps.memberprice;fp=fopen(datafile,wb+);if(fp=NULL)printf(%sn,datafile);exit(1);for(i=0;irecnumber;i+)if(fwrite(&si,sizeof(books),1,fp)!=1)printf(%sn,datafile);exit(1);fclose(fp);printf(:n);fp=fopen(datafile,rb);if(fp=NULL)printf(%sn,datafile);exit(1);printf(tttn);while(fread(&show,sizeof(books),1,fp)!=0)printf(%ldt%st%.1ft%.1fn,show.number,,show.price,show.memberprice);fclose(fp);void addhuiyuan()FILE *fp;huiyuan tmps,show;char datafile40=huiyuan;int count=0;fp=fopen(datafile,ab+);if(fp=NULL)printf(%sn,datafile);exit(1);printf(n);while(countsize)printf(n);fclose(fp);printf(:n);fp=fopen(datafile,rb);if(fp=NULL)printf(%sn,datafile);exit(1);printf(tttn);while(fread(&show,sizeof(huiyuan),1,fp)!=0)printf(%ldt%st%st%dn,show.number,,show.ps,show.power);fclose(fp);void delhuiyuan()FILE *fp;huiyuan tmps,ssize,show,temp;char name10,next,datafile40=huiyuan;int recnumber,i,result=0;begin:printf();scanf(%s,name);fp=fopen(datafile,rb);if(fp=NULL)printf(%sn,datafile);exit(1);while(feof(fp)=0)if(fread(&temp,sizeof(huiyuan),1,fp)!=0)if(strcmp(,name)=0)result=1;if(result=0)printf(%sn,name);fclose(fp);goto begin;fclose(fp);fp=fopen(datafile,rb);if(fp=NULL)printf(%sn,datafile);exit(1);recnumber=0;while(fread(&tmps,sizeof(huiyuan),1,fp)!=0)if(strcmp(,name)!=0)srecnumber.number=tmps.number;strcpy(,);strcpy(srecnumber.ps,tmps.ps);srecnumber.power=tmps.power;recnumber+;fclose(fp);fp=fopen(datafile,wb+);if(fp=NULL)printf(%sn,datafile);exit(1);for(i=0;i1)for(i=0;irecnumber-1;i+)k=i;for(j=i+1;j0)k=j;tmps.number=sk.number;strcpy(,);strcpy(tmps.ps,sk.ps);tmps.power=sk.power;sk.number=si.number;strcpy(,);strcpy(sk.ps,si.ps);sk.power=si.power;si.number=tmps.number;strcpy(,);strcpy(si.ps,tmps.ps);si.power=tmps.power;fp=fopen(datafile,wb+);if(fp=NULL)printf(%sn,datafile);exit(1);for(i=0;irecnumber;i+)if(fwrite(&si,sizeof(huiyuan),1,fp)!=1)printf(%sn,datafile);exit(1);fclose(fp);printf(:n);fp=fopen(datafile,rb);if(fp=NULL)printf(%sn,datafile);exit(1);printf(tttn);while(fread(&show,sizeof(huiyuan),1,fp)!=0)printf(%ldt%st%st%dn,show.number,,show.ps,show.power);fclose(fp);void menu()system(cls);printf( nn);printf( |*|nn);printf( |_ |n);printf( | 1. |n);printf( | 2. |n);printf( | 3. |n);printf( | 4. |n);printf( | 5. |n);printf( | 6. |n);printf( | 7. |n);printf( | 8. |n);printf( | 0. |n);printf( |_|nn);char grade;printf();scanf(%s,&grade);switch(grade)case1:printf(n);initbooks();break;case2:printf(n);addbooks();break;case3:printf(n);modifybooks();break;case4:printf(n);delbooks();break;case5:printf(n);showbooks();break;case6:printf(n);addhuiyuan();break;case7:printf(n);delhuiyuan();break;case8:printf(n);showhuiyuan();break;caseo:printf(n);exit(0);break;void scan()FILE *fp;books tmps,ssize,show,temp;char name9,datafile40=books;int recnumber,i,result=0;begin:printf();scanf(%s,name);fp=fopen(datafile,rb);if(fp=NULL)printf(%sn,datafile);exit(1);while(feof(fp)=0)if(fread(&temp,sizeof(books),1,fp)!=0)if(strcmp(,name)=0)result=1;if(result=0)printf(%sn,name);fclose(fp);goto begin;fp=fopen(datafile,rb);if(fp=NULL)printf(%sn,datafile);exit(1);recnumber=0;while(fread(&tmps,sizeof(books),1,fp)!=0)if(strcmp(,name)=0)srecnumber.number=tmps.number;strcpy(,);srecnumber.price=tmps.price;srecnumber.memberprice=tmps.price*0.8f;recnumber+;fclose(fp);fp=fopen(datafile,wb+);if(fp=NULL)printf(%sn,datafile);exit(1);for(i=0;irecnumber;i+)if(fwrite(&si,sizeof(books),1,fp)!=1)printf(%s