C语言项目练习，实现一个简陋的图书馆管理系统。
功能分析：这个项目可以分为三个模块，图书管理模块、读者管理模块和借还书登记模块。
图书管理模块主要实现图书的增删改查和显示功能，读者管理模块实现的是读者的增删改查和显示功能，借还书登记模块将实现读者对图书的借书和还书信息的记录。
首先我们要做的是定义图书的结构体和读者的结构体
typedef struct Book{int iNum; //图书编号char acName[15];//图书名称char acAuthor[15];//图书作者char acPress[15]; //图书出版社int iAmount; //图书库存量}Book;typedef struct Reader{int iNum; //读者编号char acName[15]; //读者姓名char acSex[4]; //读者性别int iMax; //读者最大可借阅量int iAmount; //读者当前可借阅量int BookId[10]; //读者已经借阅图书列表}Reader;
接着我们采取全局结构体数组的方式来记录所有的图书信息和读者信息
Book astBook[BOOK_NUM];Reader astReader[READER_NUM];
最后一一实现上述的功能，并把产生的数据保存到文件中。
代码实现如下：
Book_Management_System.h
#pragma once#include<stdio.h>#include <windows.h>//console#include<conio.h>#define BOOK_NUM 200#define READER_NUM 100#define BOOK_DATA astBook[i].iNum,astBook[i].acName,astBook[i].acAuthor,astBook[i].acPress,astBook[i].iAmount#define LEN_BOOK sizeof(struct Book)#define LEN_READER sizeof(struct Reader)#define READER_DATA astReader[i].iNum,astReader[i].acName,astReader[i].acSex,astReader[i].iMax,astReader[i].iAmount//两个结构体封装图书和读者的基本信息typedef struct Book{int iNum; //图书编号char acName[15];//图书名称char acAuthor[15];//图书作者char acPress[15]; //图书出版社int iAmount; //图书库存量}Book;typedef struct Reader{int iNum; //读者编号char acName[15]; //读者姓名char acSex[4]; //读者性别int iMax; //读者最大可借阅量int iAmount; //读者当前可借阅量int BookId[10]; //读者已经借阅图书列表}Reader;//功能函数声明//显示主菜单void ShowMainMeun();//显示书籍管理的子菜单void ShowBookMenu();//读取图书信息到文件里面int ReadBookFile(const char* pcMode);//显示图书信息void ShowBook();//添加图书信息void AddBook();//查询 通过图书编号查找int SearchBook();//删除图书信息void DeleteBook();//显示修改图书信息选项的子菜单void ShowModifyBookMenu();//保存图书信息到文件void SaveBookFile(int iBookId);//修改图书信息void ModifyBook();//书籍管理void MangaeBook();//显示读者管理的子菜单void ShowReaderMenu();//从文件里面读取读者信息int ReadReaderFile(const char* fopenMode);//显示读者信息void ShowReader();//新增读者信息void AddReader();//查找读者信息int SearchReader();//删除读者信息void DeleteReader();//显示读者信息可以修改的选项void ShowModifyReaderMenu();//保存读者信息到文件里面void SaveReaderFile(int iReaderId);//修改读者信息void ModifyReader();//读者管理模块void MangaeReader();//显示借还功能菜单void ShowBorrowReturnMenu();//借书void BorrowBook();//还书void ReturnBook();//借还书模块void BorrowReturnManger();
Book_Management_System.cpp
#include<stdio.h>#include <windows.h>#include<stdio.h>#include"Book_Management_System.h"//定义两个全局结构体数组来记录所有的图书信息和所有的读者信息Book astBook[BOOK_NUM];Reader astReader[READER_NUM];//显示主菜单void ShowMainMeun(){//清屏函数system("cls");printf("\n\n\n\n\n");printf("\t***********************************欢迎进入*******************************\n");printf("\t********************************图书馆管理系统****************************\n");printf("\t************************************主菜单********************************\n");printf("\t*********************************1.图书管理*******************************\n");printf("\t*********************************2.读者管理********************************\n");printf("\t*********************************3.借还书登记******************************\n");printf("\t*********************************0.退出系统********************************\n");printf("\n");printf("\t\t请选择(0-3)");}//显示书籍管理的子菜单void ShowBookMenu(){system("cls");printf("\n\n\n\n");printf("\t|******************************欢迎进入***************************|\n");printf("\t|******************************图书馆管理系统********************|\n");printf("\t|*********************************子菜单**************************|\n");printf("\t|******************************1.显示图书信息*********************|\n");printf("\t|******************************2.新增图书信息*********************|\n");printf("\t|******************************3.查询图书信息*********************|\n");printf("\t|******************************4.删除图书信息*********************|\n");printf("\t|******************************5.修改图书信息*********************|\n");printf("\t|******************************0.返回主菜单***********************|\n");printf("\n");printf("\t\t请选择(0-5):");}int ReadBookFile(const char* pcMode){int iBookRecord = 0;FILE* pfBook; //文件指针pfBook = fopen("book.txt", pcMode);if (pfBook == NULL){return -1;}while (!feof(pfBook)){if (fread(&astBook[iBookRecord], LEN_BOOK, 1, pfBook)){iBookRecord++;}}fclose(pfBook);return iBookRecord;}void ShowBook(){int i, iBookRecord; //记录条数system("cls");iBookRecord = ReadBookFile("rb"); //只读if (iBookRecord == -1){printf("该文件打开失败,请先新增图书信息!\n");}if (iBookRecord == 0){printf("文件中没有图书信息!\n");}else{printf("\t|**********************************************************************|\n");printf("\n\n");printf("\t%-6s%-16s%-10s%-20s%-4s\n", "编号", "书名", "作者", "出版社", "库存");for (i = 0; i < iBookRecord; i++){printf("\t%-6d%-16s%-10s%-20s%-4d\n", BOOK_DATA);}printf("\n\n");printf("\t|**********************************************************************|\n");printf("\n\n");}}void AddBook(){FILE* pfBook;int iBookRecord, iFlagExist, i;char cFlag;system("cls");iBookRecord = ReadBookFile("ab+"); // ab+追加方式打开或者新建二进制文件if (iBookRecord == -1){printf("文件打开失败!\n");return;}else if (iBookRecord == 0){printf("没有图书记录!\n");}else{ShowBook();//如果图书记录不为0则显示所有图书}//循环录入图书信息printf("请选择是否输入信息(y/n):");cFlag = getchar();getchar();if (cFlag == 'n'){return;}pfBook = fopen("book.txt", "ab+");if (pfBook == NULL){printf("文件打开失败!\n");return;}while (cFlag == 'y'){//录入数据if (iBookRecord >= BOOK_NUM){printf("记录已满!");fclose(pfBook);return;}//图书编号不能重复printf("请输入图书编号: ");do{iFlagExist = 0;scanf("%d", &astBook[iBookRecord].iNum);getchar();for (i = 0; i < iBookRecord; i++){if (astBook[i].iNum == astBook[iBookRecord].iNum){iFlagExist = 1;printf("该图书编号已经存在,请重新输入: ");break;}}} while (iFlagExist == 1);printf("请输入图书名称:");scanf("%s", astBook[iBookRecord].acName);getchar();printf("请输入图书作者:");scanf("%s", astBook[iBookRecord].acAuthor);getchar();printf("请输入图书出版社:");scanf("%s", astBook[iBookRecord].acPress);getchar();printf("请输入图书库存量:");scanf("%d", &astBook[iBookRecord].iAmount);getchar();//将新增的图书信息写入到文件中if (fwrite(&astBook[iBookRecord], LEN_BOOK, 1, pfBook) != 1){printf("无法保存该信息!\n");return;}else{printf("%d号图书信息已经保存!\n", astBook[iBookRecord].iNum);iBookRecord++;}printf("继续输入信息吗?(y/n)");cFlag = getchar();getchar();}fclose(pfBook);printf("添加图书信息执行完毕!\n");}//查询 通过图书编号查找int SearchBook(){int iBookNum, iBookRecord, iBookId, i;system("cls");iBookRecord = ReadBookFile("rb");if (iBookRecord == -1){printf("文件打开失败");printf("按任意键返回子菜单");_getch();return -2; //文件打开失败返回-2}else if (iBookRecord == 0){printf("没有图书记录!\n");printf("|按任意键返回子菜单|");_getch();return -3;//没有记录,返回-3}//进入查找程序printf("请输入图书编号：");scanf("%d", &iBookNum);getchar();for (i = 0; i < iBookRecord; i++){if (iBookNum == astBook[i].iNum){iBookId = i; //找到记录，返回记录编号printf("%d号图书信息如下：\n", iBookNum);printf("\t------------------------------\n");printf("\t %-6s%-16s%-10s%-20s%-4s%\n", "图书编号", "书名", "作者", "出版社", "库存量");printf("\t %-6d%-16s%-10s%-20s%-4d\n", BOOK_DATA);printf("\t-----------------------------------------------------------\n");break;}}if (i == iBookRecord){printf("找不到%d号图书信息!\n,", iBookNum);iBookId = -1;//找不到记录,返回-1;}return iBookId;}void DeleteBook(){FILE* pfBook;int iBookId, iBookRecord, i;char cFlag;system("cls");iBookId = SearchBook();if (iBookId == -1){return;}iBookRecord = ReadBookFile("rb");printf("已经找到该图书，是否删除？（y/n)");cFlag = getchar();getchar();//删除之前保存删除之前的图书编号，因为删除之后图书编号信息会被覆盖int index = astBook[iBookId].iNum;if (cFlag == 'n'){return;}else if (cFlag =='y'){for (i = iBookId; i < iBookRecord - 1; i++){astBook[i] = astBook[i + 1];//数组依次前移}iBookRecord--;}pfBook = fopen("book.txt", "wb");if (pfBook != NULL){for (int i = 0; i < iBookRecord; i++){if (fwrite(&astBook[i], LEN_BOOK, 1, pfBook) != 1){printf("无法保存该信息！\n");return;}}fclose(pfBook);printf("%d号图书信息已经删除！\n", index);}}//显示修改选项的子菜单void ShowModifyBookMenu(){printf("\n\n\n");printf("\t 1.编号 \n");printf("\t 2.书名 \n");printf("\t 3.作者 \n");printf("\t 4.出版社\n");printf("\t 5.图书库存量 \n");printf("\t 请输入所要修改的信息(输入相应的数字1-5):");}void SaveBookFile(int iBookId){FILE* pfBook;pfBook = fopen("book.txt", "rb+");if (pfBook != NULL){fseek(pfBook, LEN_BOOK * iBookId, SEEK_SET);if (fwrite(&astBook[iBookId], LEN_BOOK, 1, pfBook) != 1){printf("无法保存该信息！\n");}}fclose(pfBook);}void ModifyBook() //修改图书信息{int iBookId, iBookRecord, iFlagExist, iltem, iNum, i;system("cls");iBookId = SearchBook();if (iBookId == -1){return;}if (iBookId == -3){return;}//找到该序号的图书，可以进行修改的操作；iBookRecord = ReadBookFile("rb");//显示修改选项的子菜单ShowModifyBookMenu();scanf("%d", &iltem);getchar();switch (iltem){case 1:printf("请输入图书编号:");do{iFlagExist = 0;scanf("%d", &iNum);getchar();for (i = 0; i < iBookRecord; i++){if (iNum == astBook[i].iNum && i != iBookId){iFlagExist = 1;printf("错误，该图书编号已经存在，请重新输入：");break;}}} while (iFlagExist == 1);astBook[iBookId].iNum = iNum;break;case 2:printf("请输入图书名称:");scanf("%s", astBook[iBookId].acName);getchar();break;case 3:printf("请输入图书作者:");scanf("%s", astBook[iBookId].acAuthor);getchar();break;case 4:printf("请输入图书出版社:");scanf("%s", astBook[iBookId].acPress);getchar();break;case 5:printf("请输入图书库存量:");scanf("%d", &astBook[iBookId].iAmount);getchar();break;}SaveBookFile(iBookId);printf("图书信息修改成功!\n");}int iltem;void MangaeBook() //书籍管理{ShowBookMenu();//显示数据管理的子菜单scanf("%d", &iltem);getchar();while (iltem){switch (iltem){case 1:ShowBook();//显示图书信息break;case 2:AddBook();//新增图书信息break;case 3:SearchBook();//查找图书信息break;case 4:DeleteBook();//删除图书信息break;case 5:ModifyBook();//修改图书信息break;default:printf("\t\t请输入正确的数字！\n\t\t");}printf("\t|请按任意键返回子菜单|");_getch();//从控件获取字符而无需回显;ShowBookMenu();scanf("%d", &iltem);getchar();}}void ShowReaderMenu()//显示读者管理的子菜单{system("cls");printf("\n\n\n\n");//挪到界面中间printf("\n\n\n\n\n");//目的是界面往中间一点printf("\t|****************欢迎进入****************|\n");printf("\t|*************读者管理系统***************|\n");printf("\t|*****************子菜单*****************|\n");printf("\t|**************1.显示读者信息************|\n");printf("\t|**************2.新增读者信息************|\n");printf("\t|**************3.查询读者信息************|\n");printf("\t|**************4.删除读者信息************|\n");printf("\t|**************5.修改读者信息************|\n");printf("\t|**************0.返回主菜单**************|\n");printf("\t|****************************************|\n");printf("\n");printf("\t\t请选择(0-5):");}int ReadReaderFile(const char* fopenMode){int iReaderRecord = 0;FILE* pfReader;pfReader = fopen("reader.txt", fopenMode);if (pfReader == NULL){return -1;}while (!feof(pfReader)){if (fread(&astReader[iReaderRecord], LEN_READER, 1, pfReader)){iReaderRecord++;}}fclose(pfReader);return iReaderRecord;}void ShowReader() //显示读者信息{int i, iReaderRecord;system("cls");iReaderRecord = ReadReaderFile("rb");if (iReaderRecord == -1){printf("该文件打开失败，请先新增加读者信息!\n");}else{printf("\t|**********************************************************|\n");printf("\n\n");printf("\t%-6s%-16s%-10s%-20s%-20s\n", "编号", "姓名", "性别", "最大可借书数量", "当前可借书数量");for (i = 0; i < iReaderRecord; i++){printf("\t%-6d%-16s%-10s%-20d%-20d\n", READER_DATA);//此处加宏定义,否则代码太长,加宏可以减少代码量}printf("\n\n");printf("\t|******************************************************|\n");printf("\n\n");}}void AddReader()//新增读者信息{FILE* pfReader;//文件指针int iReaderRecord, iFlagExist, i;char cFlag;system("cls");iReaderRecord = ReadReaderFile("ab+"); //ab+追加方式打开或者新建二进制文件if (iReaderRecord == -1){printf("文件打开失败！\n");}else if (iReaderRecord == 0){printf("没有读者记录");}else{ShowReader();//如果读者记录不为0则调用ShowReader显示所有读者信息}//循环录入读者信息printf("请选择是否输入读者信息 (y/n):");cFlag = getchar();getchar();if (cFlag == 'n'){return;}pfReader = fopen("reader.txt", "ab+");if (pfReader == NULL){printf("文件打开失败！\n");return;}while (cFlag == 'y'){if (iReaderRecord >= READER_NUM) //若超出容量范围则不能继续写入{printf("记录已满");fclose(pfReader);return;}printf("请输入读者编号:");do{iFlagExist = 0;scanf("%d", &astReader[iReaderRecord].iNum);getchar();for (i = 0; i < iReaderRecord; i++){if (astReader[i].iNum == astReader[iReaderRecord].iNum){iFlagExist = 1;printf("该读者编号已经存在，请重新输入:");break;}}} while (iFlagExist == 1);//新增读者基本信息printf("请输入读者姓名:");scanf("%s", astReader[iReaderRecord].acName);getchar();printf("请输入读者性别");scanf("%s", astReader[iReaderRecord].acSex);getchar();printf("请输入读者最大可借阅量:"); //10 范围scanf("%d", &astReader[iReaderRecord].iMax);getchar();printf("请输入读者当前可借阅量:"); ////读者已借阅数量 = iMax - iAmountscanf("%d", &astReader[iReaderRecord].iAmount);getchar();//将新增的读者信息写入到文件中if (fwrite(&astReader[iReaderRecord], LEN_READER, 1, pfReader) != 1){printf("无法保存该信息！\n");return;}else{printf("%d号读者信息已经保存！\n", astReader[iReaderRecord].iNum);iReaderRecord++;}printf("继续输入读者信息吗?(y/n)");cFlag = getchar();getchar();}fclose(pfReader);printf("添加读者信息执行完毕！\n");}int SearchReader(){int iReaderNum, iReaderRecord, iReaderId , i;system("cls");iReaderRecord = ReadReaderFile("rb"); //以"rb”形式打开文件，如果失败则返回if (iReaderRecord == -1){printf("文件打开失败!\n");printf("|按任意键返回子菜单|");_getch(); //....return -2; //文件打开失败，返回-2}else if (iReaderRecord == 0){printf("没有读者记录!\n");printf("|按任意键返回子菜单|");_getch();return -3; //没有记录返回-3}//以下为查找程序printf("请输入读者编号:");scanf("%d", &iReaderNum);getchar();for ( i = 0; i < iReaderRecord; i++){if (iReaderNum == astReader[i].iNum){iReaderId = i;//找到记录，返回记录号printf("\t|---------------------------------------------\n");printf("\t %-6s%-16s%-10s%-20s%-20s\n", "编号", "姓名", "性别", "最大可借阅量", "当前可借阅数量");printf("\t %-6d%-16s%-10s%-20d%-20d\n", READER_DATA);printf("\t|--------------------------------------------\n");break;}}if (i == iReaderRecord){printf("找不到%d号读者信息!\n", iReaderNum);iReaderId = -1;//找不到记录,返回-1;}return iReaderId;}void DeleteReader()//删除读者信息{FILE* pfReader; //文件指针int iReaderId, iReaderRecord, i;char cFlag;system("cls");iReaderId = SearchReader();if (iReaderId == -1){printf("没有找到该读者，请输入正确的读者编号。");return;}iReaderRecord = ReadReaderFile("rb");printf("已经找到该读者，是否删除？(y/n）");cFlag = getchar();getchar();int index = astReader[iReaderId].iNum; //index保存删除之前的读者编号,因为删除//之后新的读者编号就会覆盖掉原来的读者编号if (cFlag == 'n'){return;}else if (cFlag == 'y'){for (i = iReaderId; i < iReaderRecord - 1; i++) // -1{astReader[i] = astReader[i + 1];}iReaderRecord--;}pfReader = fopen("reader.txt", "wb");if (pfReader != NULL){for (i = 0; i < iReaderRecord; i++){if (fwrite(&astReader[i], LEN_READER, 1, pfReader) != 1){printf("无法保存该信息!\n");return;}}fclose(pfReader);printf("%d号读者信息已删除!\n", index);}}void ShowModifyReaderMenu() //显示修改的选项{printf("\n");printf("\t1.编号\n");printf("\t2.姓名\n");printf("\t3.性别\n");printf("\t4.最大可借阅数量 \n");printf("请输入所要修改的信息(输入相应的数字:1-4):");}void SaveReaderFile(int iReaderId){FILE* pfReader;pfReader = fopen("reader.txt", "rb+");if (pfReader != NULL){fseek(pfReader, LEN_READER * iReaderId, SEEK_SET);if (fwrite(&astReader[iReaderId], LEN_READER, 1, pfReader) != 1){printf("无法保存该信息！\n");}fclose(pfReader);}}void ModifyReader() //修改读者信息{int iReaderId, iReaderRecord, iBorrow, iltem, iNum, iMax, iFlagExist, i;system("cls");iReaderId = SearchReader();if (iReaderId == -1){return;}//找到该序号的读者，可以进行修改iReaderRecord = ReadReaderFile("rb");ShowModifyReaderMenu();//显示修改选项scanf("%d", &iltem);getchar();switch (iltem){case 1:printf("请输入读者编号");do{iFlagExist = 0;scanf("%d", &iNum);getchar();for (i = 0; i < iReaderRecord; i++){if (iNum == astReader[i].iNum && i != iReaderId){iFlagExist = 1;printf("错误，该读者编号已经存在，请重新输入:");}}} while (iFlagExist == -1);astReader[iReaderId].iNum = iNum;break;case 2:printf("请输入读者姓名");scanf("%s", &astReader[iReaderId].acName);getchar();break;case 3:printf("请输入读者性别:F/M:");while (scanf("%s", astReader[iReaderId].acSex) > 0){getchar();if (strcmp(astReader[iReaderId].acSex, "F") == 0 || strcmp(astReader[iReaderId].acSex, "M") == 0){break;}printf("错误，只能输入'F'或者'M'，请重新输入\n");}break;case 4://iBorrow：已经借阅的数量iBorrow = astReader[iReaderId].iMax - astReader[iReaderId].iAmount;printf("请输入读者最大可借阅数量(范围为5-10):\n");while (scanf("%d", &iMax) == 1){getchar();if (iMax >= 5 && iMax <= 10){if (iBorrow > iMax) // 为什么没有等于{printf("该读者目前图书借阅数量大于改书名，需要先还书!\n");return;}else{astReader[iReaderId].iMax = iMax;astReader[iReaderId].iAmount = iMax - iBorrow;for (i = iBorrow; i < iMax; i++){astReader[iReaderId].BookId[i] = 0; //?}break;}}printf("错误，读者最大可借阅的书范围为5-10，请重新输入\n");}break;}SaveReaderFile(iReaderId);printf("该读者信息已经修改成功!\n");}void MangaeReader()//读者管理模块{int rselect;ShowReaderMenu();//显示读者管理的子菜单scanf("%d", &rselect);getchar();while (rselect){switch (rselect){case 1:ShowReader();//显示读者信息;break;case 2:AddReader();//新增读者信息;break;case 3:SearchReader();//查找读者信息;break;case 4:DeleteReader();//删除读者信息;break;case 5:ModifyReader();//修改读者信息;break;defalut:printf("\t\t 请输入正确的数字!\n\t\t");}printf("|按任意键返回子菜单|");_getch();ShowReaderMenu();scanf("%d", &rselect);getchar();}}void ShowBorrowReturnMenu(){system("cls");printf("\n\n\n\n");printf("\t|****************欢迎进入****************|\n");printf("\t|***************借还书登记***************|\n");printf("\t|*****************子菜单*****************|\n");printf("\t|***************1.借书登记***************|\n");printf("\t|***************2.还书登记***************|\n");printf("\t|**************0.返回主菜单**************|\n");printf("\t|****************************************|\n");printf("\n");printf("\t\t请选择(0-2):");}void BorrowBook()//借书{//读者是否可以借书？ 存不存在system("cls");int iBookId, iReaderId, iBorrow, i;//输入要借书的读者的编号，判断编号是否存在，如果在，显示读者已经借阅的图书信息iReaderId = SearchReader();if (iReaderId == -1){return;}iBorrow = astReader[iReaderId].iMax - astReader[iReaderId].iAmount;if (iBorrow == 0){printf("该读者目前没有借阅任何书.");}else{printf("\t该读者当前所借图书为：");for (i = 0; i < iBorrow; i++){printf("%d", astReader[iReaderId].BookId[i]);}if (astReader[iReaderId].iAmount == 0){printf("该读者可借图书数量为0，不能继续借书！\n");}}//图书是否可以借阅？ 库存是否还有printf("按任意键输入要借阅的图书信息\n");_getch();iBookId = SearchBook();if (iBookId == -1){return;}if (astBook[iBookId].iAmount == 0){printf("库存为零，不可借阅\n");return;}//借书astReader[iReaderId].BookId[iBorrow] = astBook[iBookId].iNum;//图书库存减少1astBook[iBookId].iAmount--;//当前读者可借阅数量减少1astReader[iReaderId].iAmount--;SaveBookFile(iBookId);SaveReaderFile(iReaderId);printf("借书成功\n");}void ReturnBook()//还书{system("cls");int iBookId, iReaderId, iBorrow, i;//读者是否存在iReaderId = SearchReader();if (iReaderId == -1){return;}iBorrow = astReader[iReaderId].iMax - astReader[iReaderId].iAmount;if (iBorrow == 0){printf("\t该读者没有借阅任何数，无需归还！\n");return;}else{printf("\t该读者当前借阅图书为：");for (i = 0; i < iBorrow; i++){printf("%d", astReader[iReaderId].BookId[i]);}}printf("按任意键输入要归还的图书信息\n");_getch();//图书在不在iBookId = SearchBook();if (iBookId == -1){return;}//借书列表里面是否有这本书for (i = 0; i < iBorrow; i++){if (astReader[iReaderId].BookId[i] == astBook[iBookId].iNum){//还书for (int j = i; i < iBorrow - 1; j++) //数组前移{astReader[iReaderId].BookId[j] = astReader[iReaderId].BookId[j + 1];}astReader[iReaderId].BookId[iBorrow - 1] = 0;//图书库存加1astBook[iBookId].iAmount++;//当前读者可借阅数量加1astReader[iReaderId].iAmount++;break;}}if (i == iBorrow){printf("该读者没有借阅这本书，无需归还！\n");}SaveBookFile(iBookId);SaveReaderFile(iReaderId);printf("还书成功\n");}void BorrowReturnManger()//借还书模块{ShowBorrowReturnMenu();//借还书的子菜单int iltem;scanf("%d", &iltem);getchar();while (iltem){switch (iltem){case 1:BorrowBook();//借书case 2:ReturnBook();//还书default:printf("请输入正确的数字！\n");}printf("按任意键返回子菜单");_getch();ShowBorrowReturnMenu();scanf("%d", &iltem);getchar();}}
main.cpp
#define _CRT_SECURE_NO_WARNINGS#include<stdio.h>#include <windows.h>//console#include<conio.h>#include"Book_Management_System.h"int main(){//显示主函数的界面;ShowMainMeun();int iItem;scanf("%d", &iItem);while (iItem){switch (iItem){case 1:MangaeBook();//图书管理模块break;case 2:MangaeReader();//读者管理模块break;case 3:BorrowReturnManger();//借还书模块break;default:printf("\t\t请输入正确的数字!\n\t程序将于3秒后跳转到主菜单");Sleep(3000);}ShowMainMeun();scanf("%d", &iItem);getchar();}return 0;}
