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改了的地方我加了 /* modified */ 和修改说明，另外有几个函数你还没有写，我就没办法了。#include#include#include#define MAX 20 #define PAGE 3 #define PRINT1 printf("*************************************************************") #define PRINT2 printf("书号—书名—作者—采购价格—出版社—出版 日期\n") #define PRINT3 printf("%4d%10s%15s%10d%20s-%6d%4d%4d\n",book.num,book.name,book.writer,book.price,book.pub,book.pub_time) int sum ; /*出版日期结构类型*/ struct date {int year; int month; int day; } ; /* modified *//*结构体类型*/ struct book_type {int num;/* modified */char name[10]; char writer[15]; struct date pub_time; char price[10];char pub[50]; /* modified */}book[MAX]; /*存放MAX本书的结构体数组*/ /* modified *//*保存信息*/ void save_message(int sum) /* modified */{FILE*fp; int i; if((fp=fopen("library.txt","wb"))==NULL)/* modified */{printf("读文件错误!\n"); return; } for(i=0;i<sum;i++) if(fwrite(&book,sizeof(struct book_type),1,fp)!=1) printf("写文件错误!\n"); fclose(fp); } /*输入模块*/ void input_message() /* modified */{int i=0,s=MAX; system("cls"); /*清屏函数*/ printf("\n\n 录入图书信息(最多%d中)\n",s); printf("-----------------------------------------------------------\n"); do {printf("\n 第%d种图书",i+1); printf("\n 书号："); scanf("%d",&book.num); /* modified */printf("\n 书名："); scanf("%s",book.name); /* modified */printf("\n 作者："); scanf("%s",book.writer); /* modified */printf("\n 采购价格："); scanf("%s",book.price); /* modified , maybe you want to use float type*/printf("\n 出版社："); scanf("%s",book.pub); /* modified */printf("\n 出版时间："); scanf("%d-%d-%d",&book.pub_time.year,&book.pub_time.month,&book.pub_time.day); /* modified */i++ ;}while(i<MAX); printf("\n %d种图书信息输入完毕!\n",i); sum=1; printf("\n 按任意键返回主菜单"); /* modified, don't ignore the difference between '；' and ';' */system("pause"); /* modified , I think "bioskey(0)" is uncommon */} /*读取信息*/ int read_message() /* modified */{FILE*fp; int i=0; if((fp=fopen("book.txt","rb"))==NULL) /* modified */printf("\n\n暂时没有录入任何信息，按任意键进入信息录入\n"); return 0; while(feof(fp)!=1) {fread(&book,sizeof(struct book_type),1,fp) ; /* modified */if(book.num==0) break; /* modified */else i++; } fclose(fp); return(i); } /* 输出模块 */ void output_message() ; /* modified*/ /* 更新模块 */ void renew_message() ; /* modified*/ /* 查询模块 */ void inquire_message() ; /* modified*/ /* 图书排序 */ void sort_message() ; /* modified */ /* 主函数 */ void main(void) {int choice; read_message(); system("pause"); /* modified , I think "bioskey(0)" is uncommon */do { system("cls"); /*清屏函数*/ printf("\n\n\n ~~~~~~~图书管理系统~~~~~~~~\n\n "); printf("1. 录入图书信息：\n\n"); /* modified, replaced '；' by ';' */printf("2. 打印图书信息：\n\n"); /* modified, replaced '；' by ';' */printf("3. 更新图书信息：\n\n"); /* modified, replaced '；' by ';' */printf("4. 查询图书信息：\n\n"); /* modified, replaced '；' by ';' */printf("5. 图书排序：\n\n");/* modified, replaced '；' by ';' */printf("0. 退出系统：\n\n"); /* modified, replaced '；' by ';' */printf(" 请选择(0~5)\n"); /* modified, replaced '；' by ';' */scanf("%d",&choice); switch(choice) {case 1 :input_message();break; case 2 :output_message();break; case 3 :renew_message();break; case 4 :inquire_message();break; case 5 :sort_message();break; case 0 :break; } }while(choice!=0); save_message(sum); printf("\n\n以上信息已保存-文件名（book.txt）\n"); } |
