★C++语言期末课程设计★——图书借阅系统（完整项目+源代码+详细注释）

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/* 【小浝仔】CSDN:https://blog.csdn.net/m0_46843484?spm=1011.2124.3001.5343*/#include "stdafx.h"#include"stdio.h"
#include"conio.h"
#include"string.h"
#include"stdlib.h"
int N;
char mima[20]="123";
/**********定义图书结构体类型book*******/
struct book
{long num;char name[20];char publish[20];/*出版社*/struct time{int day;int month;int year;}t;int jie;/*借阅*/
}bk[20];
/********建立图书信息库********/
void xinxi()
{int i;system("CLS");printf("\t\t         =====================        \n");printf("\t\t               录入图书信息              \n");printf("\t\t         =====================        \n\n");printf("\t\t请输入您要录入的数量:");scanf("%d",&N);for(i=0;i<N;i++){printf("\t\t请输入第%d本书的编号:",i+1);scanf("%d",&bk[i].num);printf("\t\t请输入第%d本书的名称:",i+1);scanf("%s",bk[i].name);printf("\t\t请输入第%d本书的出版社:",i+1);scanf("%s",bk[i].publish);printf("\t\t请输入第%d本书的出版时间(用逗号隔开):",i+1);scanf("%d,%d,%d",&bk[i].t.year,&bk[i].t.month,&bk[i].t.day);printf("\t\t该书是否已经被借阅,已被借阅输入'1'，未被借阅输入'0':");scanf("%d",&bk[i].jie);printf("--------------------------------------------------------------------------------\n");}system("CLS");printf("\t\t         =====================        \n");printf("\t\t               信息录入完成              \n");printf("\t\t         =====================        \n");printf("\n\t\t             按任意键继续...\n");
}
/******主菜单******/
int mymainmenu()
{int x;printf("\n\n\n\n");printf("\t\t|-------------------------------------------------------------|\n");printf("\t\t|                                         |\n");printf("\t\t|        ======================        |\n");printf("\t\t|           欢迎光临图书管理系统          |\n");printf("\t\t|        ======================        |\n");printf("\t\t|                                         |\n");printf("\t\t|           1.管理员模式                   |\n");printf("\t\t|           2.客户模式                     |\n");printf("\t\t|           3.退出系统                     |\n");printf("\t\t|--------------------------------------------------------------|\n");printf("\n\t\t请输入您的选择:");scanf("%d",&x);return x;
}
/**************管理员密码验证*****************/
int mimayanzheng()
{char temp_mima[20];/*用来存放用户输入的密码*/printf("\n");printf("\t\t         ======================        \n");printf("\t\t            欢迎使用管理员模式            \n");printf("\t\t         ======================        \n");printf("\n");printf("\t\t          请输入密码:");scanf("%s",temp_mima);if(strcmp(temp_mima,mima)==0)/*比较密码*/return 1;elsereturn 0;
}
/**************修改密码***********/
void xiugaimima()
{char temp_mima[20],temp1[20],temp2[20];/* temp_mima[20]用来存放用户输入的密码，temp1[20],temp2[
20]分别用来存放用户输入的两次修改的密码*/    
printf("\n");printf("\t\t         ======================        \n");printf("\t\t                 修改密码                 \n");printf("\t\t         ======================        \n");printf("\n");printf("\t\t           请输入原始密码:");scanf("\t\t%s",temp_mima);while(1){if(strcmp(temp_mima,mima)==0)/*比较密码*/{printf("\t请输入新密码:");scanf("%s",temp1);printf("\t请再输入一次:");scanf("%s",temp2);if(strcmp(temp1,temp2)==0)/*如果输入的两次新密码都相同*/{printf("\t修改密码成功!!请记牢密码,任意键返回...");strcpy(mima,temp1);getch();break;}else{printf("\t输入两次密码不相同，修改失败!任意键返回...");getch();break;}}else{printf("\t密码错误!您不能进行密码修改!任意键返回...");getch();break;}
}
}	
/**************管理员模式****************/
int adm()
{int x;printf("\n\n\n\n");printf("\t\t|-------------------------------------------------------------|\n");printf("\t\t|                                         |\n");printf("\t\t|        ======================        |\n");printf("\t\t|               管理员模式                |\n");printf("\t\t|        ======================        |\n");printf("\t\t|                                         |\n");printf("\t\t|           1.录入图书信息                |\n");printf("\t\t|           2.查看图书信息                |\n");printf("\t\t|           3.修改图书信息                |\n");printf("\t\t|           4.修改管理密码                |\n");printf("\t\t|           5.退出系统                    |\n");printf("\t\t|-------------------------------------------------------------|\n");printf("\n\t\t请输入您的选择:");scanf("%d",&x);return x;
}
/******************客户模式********************/
int peo()
{int x;printf("\n\n\n\n");printf("\t\t|-------------------------------------------------------------|\n");printf("\t\t|                                         |\n");printf("\t\t|        ======================        |\n");printf("\t\t|               欢迎光临                  |\n");printf("\t\t|        ======================        |\n");printf("\t\t|                                         |\n");printf("\t\t|           1.查看图书信息                |\n");printf("\t\t|           2.借阅图书                    |\n");printf("\t\t|           3.退出系统                    |\n");printf("\t\t|-------------------------------------------------------------|\n");printf("\n\t\t请输入您的选择:");scanf("%d",&x);return x;
}
/*********查看所有图书*******/
void show_all_book()
{int i;if(bk[0].num==0&&bk[0].t.year==0||N==0)/*当bk[0].num，bk[0].t.year，结构体数组等值同时为零时表示无图书信息*/printf("\t数据不存在，请先录入数据!\n\t\t按任意键返回...");else{printf("\t编号    图书名称     出版社        出版时间     状态\n");for(i=0;i<N;i++){printf("\t%-7d %-8s %-12s   %4d年%2d月%2d日 ",bk[i].num,bk[i].name,bk[i].publish,bk[i].t.year,bk[i].t.month,bk[i].t.day);if(bk[i].jie==0)printf("未借阅\n");elseprintf("已借阅\n");}}
}
/*********按书名查看********/
void showbook_name()
{int i,k=0,n;/*k用来标记是否存在该书*/char book_name[20];printf("\t\t         =====================        \n");printf("\t\t               按书名查看                \n");printf("\t\t         =====================        \n");printf("\n\t\t请输入您要查看的图书名称:");scanf("%s",book_name);for(i=0;i<N;i++)if(strcmp(book_name,bk[i].name)==0){n=i;if(k==0)/* "项目"只输出一次*/printf("\t编号    图书名称     出版社        出版时间     状态\n");printf("\t%-7d %-8s %12s   %4d年%2d月%2d日 ",bk[n].num,bk[n].name,bk[n].publish,bk[n].t.year,bk[n].t.month,bk[n].t.day);if(bk[n].jie==1)printf("已被借阅\n");elseprintf("可以借阅\n");printf("按任意键返回...");k++; /*k值不为零则表示找到图书*/}if(k==0)  /*k值为零则表示未找到图书*/printf("\t不存在该书!按任意键返回...");
}
/*********按书号查看********/
void showbook_num()
{int n,book_num,i,k=0;/*k用来标记是否存在该书*/printf("\t\t         =====================        \n");printf("\t\t               按书号查看                \n");printf("\t\t         =====================        \n");printf("\n\t\t请输入您要查看的图书编号:");scanf("%d",&book_num);for(i=0;i<N;i++)if(book_num==bk[i].num){n=i;if(k==0)/*项目只输出一次*/printf("\t编号    图书名称     出版社        出版时间     状态\n");printf("\t%-7d %-8s %12s   %4d年%2d月%2d日 ",bk[n].num,bk[n].name,bk[n].publish,bk[n].t.year,bk[n].t.month,bk[n].t.day);if(bk[n].jie==1)printf("已被借阅\n");elseprintf("可以借阅\n");k++;printf("\t按任意键返回...");}if(k==0) /*k为零则表示未找到图书*/printf("\t不存在该书!按任意键返回...");    	
}/********显示全部已借阅的图书**********/
void yijieyue()
{int i,k=0;if(bk[0].num==0&&bk[0].t.year==0||N==0)printf("\t数据不存在，请先录入数据!\n\t\t按任意键返回...");else{for(i=0;i<N;i++)if(bk[i].jie==1){if(k==0)printf("\t编号    图书名称     出版社        出版时间     \n");printf("\t%-7d %-8s %12s   %4d年%2d月%2d日 \n",bk[i].num,bk[i].name,bk[i].publish,bk[i].t.year,bk[i].t.month,bk[i].t.day);k++;			}if(k==0)printf("\n\t\t目前没有任何书借出。按任意键继续...");}
}
/********显示全部未借阅的图书********/
void weijieyue()
{int i,k=0;if(bk[0].num==0&&bk[0].t.year==0||N==0)printf("\t数据不存在，请先录入数据!\n\t\t按任意键返回...");else{for(i=0;i<N;i++)if(bk[i].jie==0){if(k==0)printf("\t编号    图书名称     出版社        出版时间     \n");printf("\t%-7d %-8s %12s   %4d年%2d月%2d日 \n",bk[i].num,bk[i].name,bk[i].publish,bk[i].t.year,bk[i].t.month,bk[i].t.day);k++;}if(k==0)printf("\n\t很遗憾！目前所有的书都被借出了。按任意键继续...");}
}
/*****查看图书菜单******/
void show()
{int x;do{system("cls");printf("\n\n\n\n");printf("\t\t|-------------------------------------------------------------|\n");printf("\t\t|                                         |\n");printf("\t\t|         =====================        |\n");printf("\t\t|              查看图书信息               |\n");printf("\t\t|         =====================        |\n");printf("\t\t|                                         |\n");printf("\t\t|           1.按书名查找                  |\n");printf("\t\t|           2.按书号查找                  |\n");printf("\t\t|           3.查看所有未借阅图书          |\n");printf("\t\t|           4.查看所有已借阅图书          |\n");printf("\t\t|           5.查看所有图书                |\n");printf("\t\t|           6.返回主菜单                  |\n");printf("\t\t|-------------------------------------------------------------|\n");printf("\n\t\t请输入您的选择:");scanf("%d",&x);switch(x){case 1:system("cls");showbook_name();getch();break;/*按书名查看*/case 2:system("cls");showbook_num();getch();break;/*按书号查看*/case 3:system("cls");weijieyue();getch();break;/*查看未借阅图书*/case 4:system("cls");yijieyue();getch();break;/*查看已借阅图书*/case 5:system("cls");show_all_book();getch();break;/*查看所有图书*/	}                                    }while(x!=6);
}
/*********按书名借阅*******/
void jie_name()
{char jy[2],name[20];/*jy用来表示是否确定借阅*/int i,book_xb,k=0;/*k用来标记是否存在该书*/printf("\t\t         ======================       \n");printf("\t\t                按书名借阅               \n");printf("\t\t         ======================       \n");while(1){printf("\n\t\t请输入书名:");scanf("%s",name);for(i=0;i<N;i++)if(strcmp(bk[i].name,name)==0&&bk[i].jie!=1)/*找到图书并确认图书没有被借出，记录图书下标*/{book_xb=i;k++;}if(k==0){printf("\t不存在该书，或该书已经借出!请正确输入图书名称!\n\t\t按任意键返回...");getch();break;}if(k==1)printf("\t编号    图书名称     出版社        出版时间     状态\n");printf("\t%-7d %-8s %12s   %4d年%2d月%2d日 ",bk[book_xb].num,bk[book_xb].name,bk[book_xb].publish,bk[book_xb].t.year,bk[book_xb].t.month,bk[book_xb].t.day);if(bk[book_xb].jie==1)printf("已被借阅\n");else{printf("可以借阅\n\t是否借阅？(是：'y'，否：'n')：");scanf("%s",jy);if(strcmp(jy,"n")==0){printf("\t借阅取消，按任意键返回....");getch();break;}else if(strcmp(jy,"y")==0){printf("\t借阅成功！按任意键返回...");bk[book_xb].jie=1;getch();break;}else{printf("\t输入有错！按任意键重新输入...");getch();break;}           }}
}
/*********按书号借阅*******/
void jie_num()
{long i,k=0,book_xb,book_num;/*k用来标记是否存在该书*/char jy[2];/*jy用来表示是否确定借阅*/printf("\t\t         ======================       \n");printf("\t\t                按书号借阅               \n");printf("\t\t         ======================       \n");while(1){printf("\n\t\t请输入书号:");scanf("%d",&book_num);for(i=0;i<N;i++)if(bk[i].num==book_num&&bk[i].jie!=1){book_xb=i;k++;}if(k==0){printf("\t不存在该书，或该书已经借出!请正确输入图书名称!\n\t\t按任意键返回...");getch();break;}printf("\t编号    图书名称     出版社        出版时间     状态\n");printf("\t%-7d %-8s %12s   %4d年%2d月%2d日 ",bk[book_xb].num,bk[book_xb].name,bk[book_xb].publish,bk[book_xb].t.year,bk[book_xb].t.month,bk[book_xb].t.day);if(bk[book_xb].jie==1)printf("已被借阅\n");else{printf("可以借阅\n\t是否借阅？(是：'y'，否：'n')：");scanf("%s",jy);if(strcmp(jy,"n")==0){printf("\t借阅取消，按任意键返回....");getch();break;}else if(strcmp(jy,"y")==0){printf("\t借阅成功！按任意键返回...");bk[book_xb].jie=1;getch();break;}else{printf("\t输入有错！按任意键重新输入...");getch();break;}       }}
}
/*********借阅图书********/
void jieyue()
{int x;do{system("cls");printf("\n\n\n\n");printf("\t\t|-------------------------------------------------------------|\n");printf("\t\t|         =====================        |\n");printf("\t\t|                借阅图书                 |\n");printf("\t\t|         =====================        |\n");printf("\t\t|                                         |\n");printf("\t\t|            1.按书名借阅                 |\n");printf("\t\t|            2.按书号借阅                 |\n");printf("\t\t|            3.查看所有图书               |\n");printf("\t\t|            4.返回主菜单                 |\n");printf("\t\t|-------------------------------------------------------------|\n");printf("\t\t请输入您的选择:");scanf("%d",&x);switch(x){case 1:system("CLS");jie_name();getch();break;/*按书名借阅*/case 2:system("CLS");jie_num();getch();break;/*按书号借阅*/case 3:system("cls");show_all_book();getch();break;/*查看所有图书*/}}while(x!=4);
}
/***************按书名进行查找并修改信息*************/
void xiugai_name()
{int i,book_xb,k=0;/*book_xb用来记录下标,k用来判断是否找到该书*/char temp[20];/*temp[20]用来存放用户输入的查找的书名*/while(1){system("cls");printf("\n");printf("\t\t|         =====================        |\n");printf("\t\t|             按书名进行修改              |\n");printf("\t\t|         =====================        |\n");printf("\t\t请输入您准备修改的图书的名称,输入'exit'退出:");scanf("%s",temp);if(strcmp(temp,"exit")==0)break;else{for(i=0;i<N;i++)if(strcmp(temp,bk[i].name)==0){book_xb=i;printf("\t该书的信息为:\n");printf("\t编号    图书名称     出版社        出版时间     状态\n");printf("\t%-7d %-8s %12s   %4d年%2d月%2d日 ",bk[book_xb].num,bk[book_xb].name,bk[book_xb].publish,bk[book_xb].t.year,bk[book_xb].t.month,bk[book_xb].t.day);if(bk[book_xb].jie==1)printf("已被借阅\n");elseprintf("可以借阅\n");k++;printf("\t\t现在请输入新信息:\n");printf("\t\t请输入本书的编号:");scanf("%d",&bk[book_xb].num);printf("\t\t请输入本书的名称:");scanf("%s",bk[book_xb].name);printf("\t\t请输入本书的出版社:");scanf("%s",bk[book_xb].publish);printf("\t\t请输入本书的出版时间(用逗号隔开):");scanf("%d,%d,%d",&bk[book_xb].t.year,&bk[book_xb].t.month,&bk[book_xb].t.day);printf("\t\t该书是否已经被借阅,已被借阅输入'1'，未被借阅输入'0':");scanf("%d",&bk[book_xb].jie);}if(k==0){printf("\t您输入的书名不存在!按任意键继续...");getch();continue;}printf("\t恭喜!信息修改成功!任意键返回...");getch();break;}}
}
/***************按书号进行查找并修改信息*************/
void xiugai_num()
{int i,book_xb,k=0;/*book_xb用来记录下标,k用来判断是否找到该书*/long temp;/*temp用来存放用户输入的查找的书号*/do{system("cls");printf("\n");printf("\t\t|         =====================        |\n");printf("\t\t|             按书号进行修改              |\n");printf("\t\t|         =====================        |\n");printf("\t\t请输入您准备修改的图书的图书号,输入'0'退出:");scanf("%ld",&temp);if(temp==0)	break;else{for(i=0;i<N;i++)if(temp==bk[i].num){book_xb=i;printf("\t该书的信息为:\n");printf("\t编号    图书名称     出版社        出版时间     状态\n");printf("\t%-7d %-8s %12s   %4d年%2d月%2d日 ",bk[book_xb].num,bk[book_xb].name,bk[book_xb].publish,bk[book_xb].t.year,bk[book_xb].t.month,bk[book_xb].t.day);k++;if(bk[book_xb].jie==1)printf("已被借阅\n");elseprintf("可以借阅\n");printf("现在请输入新信息:\n");printf("\t\t请输入本书的编号:");scanf("%d",&bk[book_xb].num);printf("\t\t请输入本书的名称:");scanf("%s",bk[book_xb].name);printf("\t\t请输入本书的出版社:");scanf("%s",bk[book_xb].publish);printf("\t\t请输入本书的出版时间(用逗号隔开):");scanf("%d,%d,%d",&bk[book_xb].t.year,&bk[book_xb].t.month,&bk[book_xb].t.day);printf("\t\t该书是否已经被借阅,已被借阅输入'1'，未被借阅输入'0':");scanf("%d",&bk[book_xb].jie);}if(k==0){printf("\t您输入的书名不存在!按任意键继续...");getch();continue;}printf("\t恭喜!信息修改成功!任意键返回...");getch();break;}}while(temp!=0);
}
/**************删除所有图书***********/
void dele_all()
{char queren[4];printf("\t继续操作会删除所有信息，是否继续?'y'继续，'n'撤销...");scanf("%s",queren);if(strcmp(queren,"y")==0){N=0;printf("\t删除成功!\n");}else{printf("\t操作被用户取消!任意键返回...");getch();}
}
/******************按书名删除************/
void dele_name()
{int i,book_xb,k=0;/*book_xb用来存放图书下标，k用标记是否找到书*/char queren[4],temp_name[20];/*queren[2]用来存放'是否'确认删除,temp_name[20]用来存放查找时输入的图书名称*/printf("\t输入你要删除的书的名称,输入'0'退出:");scanf("%s",temp_name);if(strcmp(temp_name,"0")!=0){for(i=0;i<N;i++)if(strcmp(temp_name,bk[i].name)==0){book_xb=i;printf("\t该书的信息为:\n");printf("\t编号    图书名称     出版社        出版时间     状态\n");printf("\t%-7d %-8s %12s   %4d年%2d月%2d日 ",bk[book_xb].num,bk[book_xb].name,bk[book_xb].publish,bk[book_xb].t.year,bk[book_xb].t.month,bk[book_xb].t.day);if(bk[i].jie==0)printf("未借阅\n");elseprintf("已借阅\n");k++;printf("\t是否要删除该书?是'y',否'n'");scanf("%s",queren);if(strcmp(queren,"y")==0){if(book_xb==N-1)N--;else{for(i=0;i<N;i++)bk[book_xb+i]=bk[book_xb+i+1];N--;}printf("\t删除成功!\n");}elseprintf("\t操作被用户取消!任意键返回...");}if(k==0)printf("\t未找到该书,请核实以后再操作!,按任意键返回....");getch();}	
}
/***************按书号查找并删除***********/
void dele_num()
{int i,book_xb,k=0,temp_num;/*book_xb用来存放图书下标，k用标记是否找到书,temp_num用来存放查找时输入的图书名称*/char queren[4];/*queren[2]用来存放'是否'确认删除*/while(1){printf("\t输入你要删除的书的书号,输入'0'退出:");scanf("%d",&temp_num);if(temp_num==0)break;else{for(i=0;i<N;i++)if(temp_num==bk[i].num){book_xb=i;printf("该书的信息为:\n");printf("\t编号    图书名称     出版社        出版时间     状态\n");printf("\t%-7d %-8s %12s   %4d年%2d月%2d日 ",bk[book_xb].num,bk[book_xb].name,bk[book_xb].publish,bk[book_xb].t.year,bk[book_xb].t.month,bk[book_xb].t.day);if(bk[i].jie==0)printf("未借阅\n");elseprintf("已借阅\n");k++;printf("\t是否要删除该书?是'y',否'n'");scanf("%s",queren);if(strcmp(queren,"y")==0){if(book_xb==N-1)N--;else{for(i=0;i<N;i++)bk[book_xb+i]=bk[book_xb+i+1];N--;}printf("\t删除成功!\n");}elseprintf("\t操作被用户取消!任意键返回...");}if(k==0)printf("\t未找到该书,请核实以后再操作!,按任意键返回....");getch();break;}	}
}
void dele()
{int x;	do{system("cls");printf("\t\t|-------------------------------------------------------------|\n");printf("\t\t|         =====================        |\n");printf("\t\t|              删除图书信息               |\n");printf("\t\t|         =====================        |\n");printf("\t\t|                                         |\n");printf("\t\t|            1.按书名删除                 |\n");printf("\t\t|            2.按书号删除                 |\n");printf("\t\t|            3.删除所有图书               |\n");printf("\t\t|            4.返回主菜单                 |\n");printf("\t\t|-------------------------------------------------------------|\n");printf("\t\t请输入您的选项：");scanf("%d",&x);switch(x){case 1:system("cls");dele_name();break;case 2:system("cls");dele_num();break;case 3:system("cls");dele_all();getch();break;}}while(x!=4);
}/***************修改图书**************/
void xiugai()
{int x;do{system("cls");printf("\n\n\n\n");printf("\t\t|-------------------------------------------------------------|\n");printf("\t\t|         =====================        |\n");printf("\t\t|               修改图书信息              |\n");printf("\t\t|         =====================        |\n");printf("\t\t|                                         |\n");printf("\t\t|            1.按书名查找                 |\n");printf("\t\t|            2.按书号查找                 |\n");printf("\t\t|            3.删除图书                   |\n");printf("\t\t|            4.返回主菜单                 |\n");printf("\t\t|-------------------------------------------------------------|\n");printf("\t\t请输入您的选择:");scanf("%d",&x);switch(x){case 1:system("CLS");xiugai_name();break;/*按书名查找名修改信息*/case 2:system("CLS");xiugai_num();break;/*按书号查找并修改信息*/case 3:system("cls");dele();break;							}}while(x!=4);
}/**************主函数**************/             
void main()
{int x,x2,s;/*s用来判断密码验证的结果*/do{system("cls"); x=mymainmenu();switch(x){case 1:/************调用管理员模式函数***********/system("cls");s=mimayanzheng();/*密码验证*/do{				    if(s==1){system("cls");x2=adm();switch(x2){case 1:system("cls");xinxi();getch();break;/*录入信息*/case 2:system("cls");show();break;/*查看信息*/				           case 3:system("cls");xiugai();break;/*修改信息*/case 4:system("cls");xiugaimima();break;/*修改密码*/}	}else{printf("\t密码错误！按任意键返回...");getch();break;}}while(x2!=5);break;case 2:/*调用客户模式函数*/do{system("cls");x2=peo();switch(x2){case 1:system("cls");show();getch();break;/*查看图书信息*/case 2:system("cls");jieyue();getch();break;/*借阅图书*/}        }while(x2!=3);}}while(x!=3);system("cls");printf("\n\n\n\n\n\n\n\n\n\n\n\n\t\t\t\t谢谢使用！\n\t\t\t");getch();
}

​