#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#include<math.h>
#include<ctype.h>
#include<windows.h>
#include<conio.h>
#define BACKSPACE 8
#define PASS_MAXLEN 128
#define LEN sizeof(struct Book)
#define LEN1 sizeof(struct reader)
#include"zzh.h"

void home();//注册总页面 
void Reg();//注册 
void Log();//登录 
void Adm();//管理员 
int UserMenu();//用户主页 
int AdminMenu();//管理员主页 
void BroBook();//借书 
void BacBook();//还书 
void LooBook(int n);//查询书籍 
void AddBook();//添加书籍 
void DelBook();//删除书籍 
void FixBook();//修改书籍 
int Total();//统计书的总数 
int Total1();//统计账户总数->用于修改用户名重复的问题 
int Total2();//统计读者总数 
void SBAll(int q);//查询所有书籍 
void SBAut(int q);//图书作者查询 
void SBNam(int q);//图书名字查询 
void SBCat(int q);//图书分类查询 
void ed();//结束
void Reader();//读者借阅信息 
void Readername();//按名字查找借阅 
void Allreader();//所有查看 


int main(){
	home();
}

//主页面 
void home(){
	system("cls");
while(1){
		char c;
		printf("******************************************************************************************\n");
		printf("*                            图书管理系统（Version 2.0)                                  *\n");
		printf("******************************************************************************************\n");
		printf("*                                                                                        *\n");
		printf("*                             你好呀，欢迎使用图书管理系统！                             *\n");
		printf("*                                                                                        *\n");
		printf("*                             请问你想干什么呢？                                         *\n");
		printf("*                                                                                        *\n");
		printf("*                             麻烦按下数字表示您要执行的操作                             *\n");
		printf("*                                                                                        *\n");
		printf("*                                                                                        *\n");
		printf("******************************************************************************************\n");
		printf("*您是普通用户吗？？                         * 你是我的Master吗？？                       *\n");
		printf("*                                           *                                            *\n");
		printf("*   1.注册用户,和我签订契约吧o(*￣▽￣*)ブ  *     3.Master登陆 (*/▽＼*)                 *\n");
		printf("*   2.契约签订好了？直接登陆吧              *                                            *\n");
		printf("*                                           *                                            *\n");
		printf("******************************************************************************************\n\n\n");
		printf("\t\t\t\t\t\t\t\t\t您想执行的操作：");
		c=getch();
		if(c=='1'){
			Reg();
			break;
		}else if(c=='2'){
			Log();
			break;
		}else if (c=='3'){
			Adm();
		}
		system("cls");
}
		
}
//注册 
void Reg(){
	FILE *fp=fopen("账号管理.txt","r");
	fp=fopen("账号管理.txt","r");
	system("cls");
	int k=0;
	char t;
	int i=0,l1=0,l2=0;
	char c;
	char UserName[50],PassWord[10],RePassWord[10];
	char name[100],password[100];
	toxy(40,2);
	printf("签订契约（按ESC回到登陆界面）\n\n\n");/*x=40，y=2*/ 
	printf("                           取个好听的名字吧φ(゜▽゜*)/,只能是英文,数字哦：\n\n                           ");
	printf("\n\n                           请输入您的密码，不要随便泄露密码给别人鸭（小声BB）╯ 3╰  ：\n\n                           ");
	    printf("\n\n                           确认一下密码QAQ：\n\n                           ");
		toxy(27,7);
	while(1){
		c=getch();
		if(c==27) home();
		if(c=='\r'||c=='\n'){
			UserName[i]=0;
			break;
		}
		else if(c==8)
		{
			if(i==0) i=0;
			else
			{
				printf("\b \b");
				i=i-1;
			}
		}else if((c<='Z'&&c>='A')||(c<='z'&&c>='a')||(c<='9'&&c>='0')){
			UserName[i++]=c;
			putchar(c);
		}
	}
		l1=strlen(UserName);
		toxy(27,11);
		while(1){
		int i=0;
		char c;
			while(1){
				c=getch();
				if(c==27) home();
				if(c=='\n'||c=='\r'){
					PassWord[i]=0;
					break;
				}
				else if(c==BACKSPACE){
					PassWord[--i]='\0';
					putchar(BACKSPACE);
					putchar(' ');
					putchar(BACKSPACE);
				}//可以用DELETE键 
				else{
					PassWord[i++]=c;
					putchar('*');
				}
			}
			l2=strlen(PassWord);
			i=0;
			toxy(27,15);
			while(1){
				c=getch();
				if(c==27) home();
				if(c=='\n'||c=='\r'){
					RePassWord[i]=0;
					break;
				}
			else if(c==8)
			{
				if(i==0) i=0;
				else
				{
					printf("\b \b");
					i=i-1;
				}
			}
				else{
					RePassWord[i++]=c;
					putchar('*');
				}
			}
			system("cls");
		printf("\n\n\n");
		printf("\t\t\t┌──────────────────────────────────────────────┐\n");
		printf("\t\t\t│                                              │\n");
		printf("\t\t\t│                                              │\n");
		printf("\t\t\t│                 注册中.                      │\n");
		printf("\t\t\t│                                              │\n");	
		printf("\t\t\t│                                              │\n");
		printf("\t\t\t└──────────────────────────────────────────────┘\n");
		Sleep(500);
		system("cls");
		printf("\n\n\n");
		printf("\t\t\t┌──────────────────────────────────────────────┐\n");
		printf("\t\t\t│                                              │\n");
		printf("\t\t\t│                                              │\n");
		printf("\t\t\t│                 注册中..                     │\n");
		printf("\t\t\t│                                              │\n");	
		printf("\t\t\t│                                              │\n");
		printf("\t\t\t└──────────────────────────────────────────────┘\n");
		Sleep(500);
		system("cls");
		printf("\n\n\n");
		printf("\t\t\t┌──────────────────────────────────────────────┐\n");
		printf("\t\t\t│                                              │\n");
		printf("\t\t\t│                                              │\n");
		printf("\t\t\t│                 注册中...                    │\n");
		printf("\t\t\t│                                              │\n");	
		printf("\t\t\t│                                              │\n");
		printf("\t\t\t└──────────────────────────────────────────────┘\n");
		Sleep(500);
		system("cls");
		printf("\n\n\n");
		printf("\t\t\t┌──────────────────────────────────────────────┐\n");
		printf("\t\t\t│                                              │\n");
		printf("\t\t\t│                                              │\n");
		printf("\t\t\t│                 注册中.                      │\n");
		printf("\t\t\t│                                              │\n");	
		printf("\t\t\t│                                              │\n");
		printf("\t\t\t└──────────────────────────────────────────────┘\n");
		Sleep(500);
		system("cls");
		printf("\n\n\n");
		printf("\t\t\t┌──────────────────────────────────────────────┐\n");
		printf("\t\t\t│                                              │\n");
		printf("\t\t\t│                                              │\n");
		printf("\t\t\t│                 注册中..                     │\n");
		printf("\t\t\t│                                              │\n");	
		printf("\t\t\t│                                              │\n");
		printf("\t\t\t└──────────────────────────────────────────────┘\n");
		Sleep(500);
		system("cls");
			if(!l1||!l2){
				printf("\n\n\n");				
				printf("\t\t\t┌──────────────────────────────────────────────┐\n");
				printf("\t\t\t│                抱歉(。﹏。*)                 │\n");
				printf("\t\t\t│                                              │\n");
				printf("\t\t\t│  用户名和密码均不能为空                      │\n");
				printf("\t\t\t│  按Esc退出，按回车重新注册                   │\n");
				printf("\t\t\t│                                              │\n");	
				printf("\t\t\t└──────────────────────────────────────────────┘\n");
				t=getch();
				while(t!=27&&t!=13){
					t=getch();
					continue;
				}
				if(t==27){
					system("cls");
					printf("正在跳转...");
					home();
				}else if(t==13){
					system("cls");
					printf("正在跳转...");
					Reg();					
				}
			}else {
	
			int j=Total1();//一共有j个用户,Total是用来统计文本里面有多少个用户的 
			for(int i=0;i<j;i++){
				fscanf(fp,"%s %s",name,password);//用文档里面的name一个一个和UserName进行比较如果发现有一样的就k++ 
				if(strcmp(UserName,name)==0){
					k++;
					break; 
				}
			}
			if(k==0){
			if(strcmp(PassWord,RePassWord)==0){
				char t;
				fp=fopen("账号管理.txt","a");
				fprintf(fp,"%s %s",UserName,PassWord);
				fputs("\n",fp);
				fflush(stdin);
				fclose(fp);
				system("cls");
				printf("\n\n\n");
				printf("\t\t\t┌──────────────────────────────────────────────┐\n");
				printf("\t\t\t│                                              │\n");
				printf("\t\t\t│      契约签订成功！( ·v ·)人(^▽^ )        │\n");
				printf("\t\t\t│      继续登陆请按Enter                       │\n");
				printf("\t\t\t│      回到主菜单请按Esc                       │\n");	
				printf("\t\t\t│                                              │\n");
				printf("\t\t\t└──────────────────────────────────────────────┘\n");				t=getch();
				if(t==13){
					system("cls");
					printf("\n\n\n");
					printf("\t\t\t┌──────────────────────────────────────────────┐\n");
					printf("\t\t\t│                                              │\n");
					printf("\t\t\t│                                              │\n");
					printf("\t\t\t│      准备进入用户加载界面.                   │\n");
					printf("\t\t\t│                                              │\n");	
					printf("\t\t\t│                                              │\n");
					printf("\t\t\t└──────────────────────────────────────────────┘\n");
					Sleep(400);
					system("cls");
					printf("\n\n\n");
					printf("\t\t\t┌──────────────────────────────────────────────┐\n");
					printf("\t\t\t│                                              │\n");
					printf("\t\t\t│                                              │\n");
					printf("\t\t\t│      准备进入用户加载界面..                  │\n");
					printf("\t\t\t│                                              │\n");	
					printf("\t\t\t│                                              │\n");
					printf("\t\t\t└──────────────────────────────────────────────┘\n");
					Sleep(400);
					system("cls");
					printf("\n\n\n");
					printf("\t\t\t┌──────────────────────────────────────────────┐\n");
					printf("\t\t\t│                                              │\n");
					printf("\t\t\t│                                              │\n");
					printf("\t\t\t│      准备进入用户加载界面.                   │\n");
					printf("\t\t\t│                                              │\n");	
					printf("\t\t\t│                                              │\n");
					printf("\t\t\t└──────────────────────────────────────────────┘\n");
					Sleep(400);
					system("cls");
					Log();
					break;
				}
				home();
			}else {
				system("cls");
				printf("\n\n\n");
				printf("\t\t\t┌──────────────────────────────────────────────┐\n");
				printf("\t\t\t│                抱歉(。﹏。*)                 │\n");
				printf("\t\t\t│                                              │\n");
				printf("\t\t\t│  两次密码不对吖,麻烦在输入一次啦~QAQ         │\n");
				printf("\t\t\t│  稍后将返回注册界面哟(＾V＾)ノ~              │\n");
				printf("\t\t\t│                                              │\n");	
				printf("\t\t\t└──────────────────────────────────────────────┘\n");
				Sleep(1500);
				Reg();
			}
		}else{
			printf("\n\n\n");
			printf("\t\t\t┌──────────────────────────────────────────────┐\n");
			printf("\t\t\t│                抱歉(。﹏。*)                 │\n");
			printf("\t\t\t│                                              │\n");
			printf("\t\t\t│  用户名重复了哟~请殿下再换一个呢(ノへ￣、)   │\n");
			printf("\t\t\t│  重新注册请按Enter                           │\n");
			printf("\t\t\t│  回到主菜单请按ESC                           │\n");	
			printf("\t\t\t└──────────────────────────────────────────────┘\n");
			t=getch();
			while(t!=13&&t!=27){
				t=getch();
				continue;
			}
			if(t==13){
				system("cls");
				Reg();
			}else if(t==27){
				fclose(fp);
				system("cls");
				home();
			}
			
			 
		}
	}
	}
}

//登录 
void Log(){
	system("cls");
	char UserName[50],PassWord[100];
	char name[50],password[100];
	char c;
	int i=0;
	int k=0;
	char t;
	FILE *fp=fopen("账号管理.txt","r");
	printf("\n\n\t\t\t\t你好啊~一直在等你呢￣ω￣(按ESC回到主页面)\n\n\n");
	printf("                           输入你的名字呢~\n\n                           ");
	printf("\n\n                           请输入您的密码:\n\n                           ");
	toxy(27,7);
	while(1){
		c=getch();
		if(c==27) home();
		if(c=='\r'||c=='\n'){
			UserName[i]=0;
			break;
		}
		else if(c==8)
		{
			if(i==0) i=0;
			else
			{
				printf("\b \b");
				i=i-1;
			}
		}else if((c<='Z'&&c>='A')||(c<='z'&&c>='a')||(c<='9'&&c>='0')){
			UserName[i++]=c;
			putchar(c);
		}
	}
	i=0;
	toxy(27,11); 
	while(1){
		c=getch();
		if(c==27) home();
		if(c=='\r'||c=='\n'){
			PassWord[i]=0;
			break;
		}
		else if(c==8)
		{
			if(i==0) i=0;
			else
			{
				printf("\b \b");
				i=i-1;
			}
		}
			else if((c<='Z'&&c>='A')||(c<='z'&&c>='a')||(c<='9'&&c>='0')){
			PassWord[i++]=c;
			putchar('*');
		}
	}
	int j=Total1();
	system("cls");
	printf("\n\n\n");
	printf("\t\t\t┌──────────────────────────────────────────────┐\n");
	printf("\t\t\t│                                              │\n");
	printf("\t\t\t│                                              │\n");
	printf("\t\t\t│                 登陆中.                      │\n");
	printf("\t\t\t│                                              │\n");	
	printf("\t\t\t│                                              │\n");
	printf("\t\t\t└──────────────────────────────────────────────┘\n");
	Sleep(500);
	system("cls");
	printf("\n\n\n");
	printf("\t\t\t┌──────────────────────────────────────────────┐\n");
	printf("\t\t\t│                                              │\n");
	printf("\t\t\t│                                              │\n");
	printf("\t\t\t│                 登陆中..                     │\n");
	printf("\t\t\t│                                              │\n");	
	printf("\t\t\t│                                              │\n");
	printf("\t\t\t└──────────────────────────────────────────────┘\n");
	Sleep(500);
	system("cls");
	printf("\n\n\n");
	printf("\t\t\t┌──────────────────────────────────────────────┐\n");
	printf("\t\t\t│                                              │\n");
	printf("\t\t\t│                                              │\n");
	printf("\t\t\t│                 登陆中...                    │\n");
	printf("\t\t\t│                                              │\n");	
	printf("\t\t\t│                                              │\n");
	printf("\t\t\t└──────────────────────────────────────────────┘\n");
	Sleep(500);
	system("cls");
	printf("\n\n\n");
	printf("\t\t\t┌──────────────────────────────────────────────┐\n");
	printf("\t\t\t│                                              │\n");
	printf("\t\t\t│                                              │\n");
	printf("\t\t\t│                 登陆中.                      │\n");
	printf("\t\t\t│                                              │\n");	
	printf("\t\t\t│                                              │\n");
	printf("\t\t\t└──────────────────────────────────────────────┘\n");
	Sleep(500);
	system("cls");
	printf("\n\n\n");
	printf("\t\t\t┌──────────────────────────────────────────────┐\n");
	printf("\t\t\t│                                              │\n");
	printf("\t\t\t│                                              │\n");
	printf("\t\t\t│                 登陆中..                     │\n");
	printf("\t\t\t│                                              │\n");	
	printf("\t\t\t│                                              │\n");
	printf("\t\t\t└──────────────────────────────────────────────┘\n");
	Sleep(500);
	system("cls");
	for(int f=0;f<j;f++){
		fscanf(fp,"%s%s",name,password);
		if(strcmp(UserName,name)==0){
			if(strcmp(PassWord,password)==0){
				system("cls");
				printf("\n\n\n");
				printf("\t\t\t┌──────────────────────────────────────────────┐\n");
				printf("\t\t\t│                                              │\n");
				printf("\t\t\t│                                              │\n");
				printf("\t\t\t│        登陆成功！( ·v ·)人(^▽^ )          │\n");
				printf("\t\t\t│                                              │\n");	
				printf("\t\t\t│                                              │\n");
				printf("\t\t\t└──────────────────────────────────────────────┘\n");
				Sleep(1000);
				UserMenu(); 
			}else{
				system("cls");
				printf("\n\n\n");
				printf("\t\t\t┌──────────────────────────────────────────────┐\n");
				printf("\t\t\t│                                              │\n");
				printf("\t\t\t│     用户名和密码不匹配啦(ノへ￣、)           │\n");
				printf("\t\t\t│     重新登陆请按Enter                        │\n");
				printf("\t\t\t│     返回主菜单请按Esc                        │\n");	
				printf("\t\t\t│                                              │\n");
				printf("\t\t\t└──────────────────────────────────────────────┘\n");
				t=getch();
				while(t!=13&&t!=27){
					t=getch();
					continue;
				}
				if(t==13){
					system("cls");
					Log();
				}else if(t==27){
					fclose(fp);
					system("cls");
					home();
				}
			}
			k++;
		}
	}
	if(k==0){
		system("cls");
		printf("\n\n\n"); 
		printf("\t\t\t┌──────────────────────────────────────────────┐\n");
		printf("\t\t\t│                                              │\n");
		printf("\t\t\t│        用户名不存在，请确定您的操作          │\n");
		printf("\t\t\t│        回到主菜单请按Esc(·＿·)/            │\n");
		printf("\t\t\t│                                              │\n");
		printf("\t\t\t├───────────────────────┬──────────────────────│\n");	
		printf("\t\t\t│       1.注册          │     2.重新登陆       │\n");
		printf("\t\t\t└───────────────────────┴ ─────────────────────┘\n");
		t=getch();
		while(t!='1'&&t!='2'&&t!=27){
			t=getch();
			continue;
		}
		if(t=='1'){
			system("cls");
			Reg();
		}else if(t=='2'){
			system("cls");
			Log();
		}else if(t==27){
			system("cls");
			home();
		}
	}
}
//管理员 
void Adm(){
	system("cls");
	char c;
	int k=0;
	char AdminName[50],PassWord[10],t;
	char name[100],password[100];
	int i=0;
	FILE *fp=fopen("管理员专属.txt","r");
	printf("\n\n                           我的Master~一直在等你哟￣ω￣(按ESC回到主页面)\n\n\n");
	printf("                           输入你的名字呢~\n\n                           ");
	printf("\n\n                           请输入您的密码:\n\n                           ");
	toxy(27,7);
	while(1){
		c=getch();
		if(c==27) home();
		if(c=='\r'||c=='\n'){
			AdminName[i]=0;
			break;
		}
		else if(c==8)
		{
			if(i==0) i=0;
			else
			{
				printf("\b \b");
				i=i-1;
			}
		}else if((c<='Z'&&c>='A')||(c<='z'&&c>='a')||(c<='9'&&c>='0')){
			AdminName[i++]=c;
			putchar(c);
		}
	}
	toxy(27,11);
	i=0;
	while(1){
		c=getch();
		if(c==27) home();
		if(c=='\r'||c=='\n'){
			PassWord[i]=0;
			break;
		}
		else if(c==8)
		{
			if(i==0) i=0;
			else
			{
				printf("\b \b");
				i=i-1;
			}
		}
			else if((c<='Z'&&c>='A')||(c<='z'&&c>='a')||(c<='9'&&c>='0')){
			PassWord[i++]=c;
			putchar('*');
		}
	}
	int j=1;
	system("cls");
	printf("\n\n\n");
	printf("\t\t\t┌──────────────────────────────────────────────┐\n");
	printf("\t\t\t│                                              │\n");
	printf("\t\t\t│                                              │\n");
	printf("\t\t\t│                 登陆中.                      │\n");
	printf("\t\t\t│                                              │\n");	
	printf("\t\t\t│                                              │\n");
	printf("\t\t\t└──────────────────────────────────────────────┘\n");
	Sleep(500);
	system("cls");
	printf("\n\n\n");
	printf("\t\t\t┌──────────────────────────────────────────────┐\n");
	printf("\t\t\t│                                              │\n");
	printf("\t\t\t│                                              │\n");
	printf("\t\t\t│                 登陆中..                     │\n");
	printf("\t\t\t│                                              │\n");	
	printf("\t\t\t│                                              │\n");
	printf("\t\t\t└──────────────────────────────────────────────┘\n");
	Sleep(500);
	system("cls");
	printf("\n\n\n");
	printf("\t\t\t┌──────────────────────────────────────────────┐\n");
	printf("\t\t\t│                                              │\n");
	printf("\t\t\t│                                              │\n");
	printf("\t\t\t│                 登陆中...                    │\n");
	printf("\t\t\t│                                              │\n");	
	printf("\t\t\t│                                              │\n");
	printf("\t\t\t└──────────────────────────────────────────────┘\n");
	Sleep(500);
	system("cls");
	printf("\n\n\n");
	printf("\t\t\t┌──────────────────────────────────────────────┐\n");
	printf("\t\t\t│                                              │\n");
	printf("\t\t\t│                                              │\n");
	printf("\t\t\t│                 登陆中.                      │\n");
	printf("\t\t\t│                                              │\n");	
	printf("\t\t\t│                                              │\n");
	printf("\t\t\t└──────────────────────────────────────────────┘\n");
	Sleep(500);
	system("cls");
	printf("\n\n\n");
	printf("\t\t\t┌──────────────────────────────────────────────┐\n");
	printf("\t\t\t│                                              │\n");
	printf("\t\t\t│                                              │\n");
	printf("\t\t\t│                 登陆中..                     │\n");
	printf("\t\t\t│                                              │\n");	
	printf("\t\t\t│                                              │\n");
	printf("\t\t\t└──────────────────────────────────────────────┘\n");
	Sleep(500);
	system("cls");
	for(int f=0;f<j;f++){
		fscanf(fp,"%s%s",name,password);
		if(strcmp(AdminName,name)==0){
			if(strcmp(PassWord,password)==0){
				system("cls");
				printf("\n\n\n");
				printf("\t\t\t┌──────────────────────────────────────────────┐\n");
				printf("\t\t\t│                                              │\n");
				printf("\t\t\t│                                              │\n");
				printf("\t\t\t│        登陆成功！( ·v ·)人(^▽^ )          │\n");
				printf("\t\t\t│                                              │\n");	
				printf("\t\t\t│                                              │\n");
				printf("\t\t\t└──────────────────────────────────────────────┘\n");
				Sleep(1000);
				AdminMenu(); 
				break;
			}else{
				system("cls");
				printf("\n\n\n");
				printf("\t\t\t┌──────────────────────────────────────────────┐\n");
				printf("\t\t\t│                                              │\n");
				printf("\t\t\t│     用户名和密码不匹配啦(ノへ￣、)           │\n");
				printf("\t\t\t│     重新登陆请按Enter                        │\n");
				printf("\t\t\t│     返回主菜单请按Esc                        │\n");	
				printf("\t\t\t│                                              │\n");
				printf("\t\t\t└──────────────────────────────────────────────┘\n");
				t=getch();
				while(t!=13&&t!=27){
					t=getch();
					continue;
				}
				if(t==13){
					system("cls");
					Adm();
				}else if(t==27){
					fclose(fp);
					system("cls");
					printf("正在跳转...");
					home();
				}
			}
			k++;
		}
	}
	if(k==0){
		system("cls");
		printf("\n\n\n");
		printf("\t\t\t┌──────────────────────────────────────────────┐\n");
		printf("\t\t\t│                                              │\n");
		printf("\t\t\t│     用户名不对呀~                            │\n");
		printf("\t\t\t│     重新登陆请按Enter                        │\n");
		printf("\t\t\t│     返回主菜单请按Esc                        │\n");	
		printf("\t\t\t│                                              │\n");
		printf("\t\t\t└──────────────────────────────────────────────┘\n");
		Sleep(1000);
		t=getch();
		while(1){
			if(t==27){
				system("cls");
				home();
			}
			else if(t==13){
				system("cls");
				Adm();
			}
		}
	} 
	
}
int UserMenu(){
	system("cls");
	char t[10];
while(1)
	{
		system("cls"); 
		printf("******************************************************************************************\n");
		printf("*                            图书管理系统（Version 2.0)                                  *\n");
		printf("******************************************************************************************\n");
		printf("*                                                                                        *\n");
		printf("*      你好呀 ヾ(′·ω·｀)/:                                                           *\n");
		printf("*                                                                                        *\n");
		printf("*            有何贵干呢？                                                                *\n");
		printf("*                                                                                        *\n");
		printf("*            1、是来借书的呢                                                             *\n");
		printf("*                                                                                        *\n");
		printf("*            2、是来还书的呢                                                             *\n");
		printf("*                                                                                        *\n");
		printf("*            3、我就来看一下书的信息的                                                   *\n");
		printf("*                                                                                        *\n");
		printf("*            4、没什么事情了，拜拜                                                       *\n");
		printf("*                                                                                        *\n");
		printf("******************************************************************************************\n");
		printf("\n\n\t\t\t\t\t\t\t\t\t您想执行的操作：");
		scanf("%s",t);
		if(strcmp(t,"1")==0){
			BroBook();
			break;
		}else if(strcmp(t,"2")==0){
			BacBook();
			break;
		}else if(strcmp(t,"3")==0){
			LooBook(0);
			break;
		}else if(strcmp(t,"4")==0){
			ed();
		}
	}
} 

//借书
void BroBook(){
	system("cls");
	printf("欢迎来到图书管理系统：\n");
	struct Book *head=NULL;
	struct Book *p,*p1,*p2;
	FILE *fp,*fp1;
	float Price=0;
	char t,Re[100];
	int Many;
	int n=0,j=0,k=0,flag=0;//k是库存的数量; 
	int Xuehao;
	char Num[20]={'\0'},Aut[20]={'\0'},Pub[20]={'\0'},Nam[20]={'\0'},Cat[20]={'\0'};
	char Mingzi[20]={'\0'},Riqi[20]={'\0'},Shuming[20]={'\0'},num[20]={'\0'};
	fp=fopen("图书.txt","r");
	if(fp==NULL){
		system("cls");
		printf("文件无法读取,请联系工作人员,按回车键返回");
		 t=getch();
		 while(t!=13){
		 	t=getch();
		 	continue;
		 }
		 UserMenu();
	}
	else{
		printf("\n请输入想要借的书的书号:\n");
		scanf("%s",Re);
		j=Total();
		for(int m=0;m<j;m++){
			fscanf(fp,"%s%s%s%s%s%d%f",Num,Nam,Aut,Pub,Cat,&Many,&Price);
			n++;
			if(n==1){
				p1=p2=(struct Book*)malloc(LEN);
				head=p1;
			}else{
				p2->next=p1;
				p2=p1;
				p1=(struct Book*)malloc(LEN);
			}
			    strcpy(p1->num,Num);//复制书号
                strcpy(p1->nam,Nam);//复制书名
                strcpy(p1->aut,Aut);//复制作者名字
                strcpy(p1->pub,Pub);//复制出版社
                strcpy(p1->cat,Cat);//复制类别
                p1->many=Many;//复制个数
                p1->price=Price;//复制单价
		}
		if(n==0){
			head=NULL;
		}
		else{
			p2->next=p1;
			p1->next=NULL;
			fclose(fp);
		}
	}
	p=head;
	for(;p!=NULL;){
		if(!strcmp(p->num,Re)){
			flag=1;
			k=p->many;
			(p->many)--;
		}
		p=p->next;
	}
	if((k>0)&&flag){
		
		fp=fopen("图书.txt","w");
		fclose(fp);
		fp=fopen("图书.txt","a");
		p=head;
		for(;p!=NULL;){
			fprintf(fp,"%-8s%-8s%-16s%-16s%-16s%-10d%10.2f\n",p->num,p->nam,p->aut,p->pub,p->cat,p->many,p->price);
			p=p->next;
		}
		free(p);
		fclose(fp);
		if((fp1=fopen("读者.txt","r"))==NULL){
			fp1=fopen("读者.txt","w");
			fclose(fp1);
		}
		fp1=fopen("读者.txt","a");
		printf("请输入学号："); 
		scanf("%d",&Xuehao);
		printf("请输入名字：");
		scanf("%s",Mingzi);
		printf("请输入借书日期(年份/月份/日)："); 
		scanf("%s",Riqi);
		fprintf(fp1,"%-8d%-23s%-18s%-10s\n",Xuehao,Mingzi,Riqi,Re);
		fclose(fp1);
		printf("借书成功,请按时归还,按Esc键退出\n");
		t=getch();
		while(t!=27){
			t=getch();
			continue;
		} 
		if(t==27){
			UserMenu();
		}
	}
	else{
		if(flag!=0){
			printf("没有你要的书籍,按Esc键返回\n");
			while(t!=27){
				t=getch();
				continue;
			} 
			UserMenu();
		}else{
			printf("库存不足，按Esc键返回\n");
		}
	}
	while(t!=27){
		t=getch();
		continue;
	} 
	UserMenu();
} 


//还书 
void BacBook(){
	system("cls");
	struct reader *head=NULL;
	struct Book *zhead=NULL;
	struct Book *zp,*zp1,*zp2;
	struct reader *p,*p1,*p2;
	FILE *fp,*fp1;
	float Price=0;
	char t,ReName[100];
	int Many;
	int n=0,j=0,k=0,flag=0,l=0;//k是库存的数量; 
	char Num[20]={'\0'},Aut[20]={'\0'},Pub[20]={'\0'},Nam[20]={'\0'},Cat[20]={'\0'};
	int Xuehao,ReXuehao;
	char Mingzi[20]={'\0'},Riqi[20]={'\0'},Shuming[20]={'\0'};
	fp=fopen("读者.txt","r");
	if(fp==NULL){
		system("cls");
		printf("未存在读者文件，请联系管理员\n");
		printf("按Esc返回\n");
		t=getch();
		while(t!=27){
			t=getch();
			continue;
		}
		UserMenu();
	}else{
		printf("请输入学号：");//
		scanf("%d",&ReXuehao);
		printf("请输入书号：");
		scanf("%s",ReName);
		j=Total2();
		for(int i=0;i<j;i++){
			fscanf(fp,"%d%s%s%s",&Xuehao,Mingzi,Riqi,Shuming);
			if((Xuehao==ReXuehao)&&!strcmp(Shuming,ReName)){
				flag=1;
			}
		}
		fclose(fp);
		fp=fopen("读者.txt","r");
		//if(flag){
			for(int i=0;i<j;i++){
				fscanf(fp,"%d%s%s%s",&Xuehao,Mingzi,Riqi,Shuming);
				if(!((Xuehao==ReXuehao)&&!strcmp(Shuming,ReName))){
					n++;
					if(n==1){
						p1=p2=(struct reader*)malloc(LEN1);
						head=p1;
					}
					else{
						p2->next=p1;
						p2=p1;
						p1=(struct reader*)malloc(LEN1);
					}
					p1->xuehao=Xuehao;
					strcpy(p1->username,Mingzi);
					strcpy(p1->time,Riqi);
					strcpy(p1->name,Shuming);
				}
			} 
				if(n==0){
					head=NULL;
				}else{
					p2->next=p1;
					p1->next=NULL;
					fclose(fp);
				}
				fp=fopen("读者.txt","w");
				fclose(fp);
				fp=fopen("读者.txt","a");
				p=head;
				for(;p!=NULL;){
					fprintf(fp,"%-8d%-23s%-18s%-10s\n",p->xuehao,p->username,p->time,p->name);
					p=p->next;
				}
				free(p);
				fclose(fp);
				if(flag){
					printf("是否确认还书，还书请按回车,退出请按Esc\n");
					t=getch();
					while(t!=13&&t!=27){
						t=getch();
						continue;
					}
					if(t==27){
						printf("正在跳转...");
						Sleep(1000);
						UserMenu();
					}
					printf("还书成功，按Esc键返回");
					n=0,flag=0;
					l=Total();
					fp1=fopen("图书.txt","r");
					for(int i=0;i<l;i++){
					fscanf(fp1,"%s%s%s%s%s%d%f",Num,Nam,Aut,Pub,Cat,&Many,&Price);
								n++;
								if(n==1){
									zp1=zp2=(struct Book*)malloc(LEN);
									zhead=zp1;
								}else{
									zp2->next=zp1;
									zp2=zp1;
									zp1=(struct Book*)malloc(LEN);
								}
								    strcpy(zp1->num,Num);//复制书号
					                strcpy(zp1->nam,Nam);//复制书名
					                strcpy(zp1->aut,Aut);//复制作者名字
					                strcpy(zp1->pub,Pub);//复制出版社
					                strcpy(zp1->cat,Cat);//复制类别
					                zp1->many=Many;//复制个数
					                zp1->price=Price;//复制单价
							}
							if(n==0){
								zhead=NULL;
							}
							else{
								zp2->next=zp1;
								zp1->next=NULL;
								fclose(fp1);
							}
						
						zp=zhead;
						for(;zp!=NULL;){
							if(!strcmp(zp->num,ReName)){
								++(zp->many);
							}
							zp=zp->next;
						}
						fp1=fopen("图书.txt","w");
						fclose(fp1);
						fp1=fopen("图书.txt","a");
						zp=zhead;	
						for(;zp!=NULL;){
							fprintf(fp1,"%-8s%-8s%-16s%-16s%-16s%-10d%10.2f\n",zp->num,zp->nam,zp->aut,zp->pub,zp->cat,zp->many,zp->price);
							zp=zp->next;
						}
						fclose(fp1);
						t=getch();
						while(t!=27){
							t=getch();
							continue;
						}
						if(t==27){
							UserMenu();
						}
					}
				else{
					system("cls");
					printf("不存在借书的用户,按Esc键返回\n");
					while(t!=27){
						t=getch();
						continue;
					}
					if(t==27){
						UserMenu();
					}
				}
		}
	}