实验室设备管理系统

       最近做了课程设计,实验室设备管理系统.系统本身并不难做,可是需要考虑到美观性,准确性,因此,我在中间加了大量的判断，并且，用了菜单式的功能，让其变得更加美观，也加了一些动画效果.功能也是十分的完备.可以添加设备信息,删除设备信息,修改设备信息,查看设备信息,设置密码功能,保存设备信息功能，统计设备数量功能,为设备信息排序的功能,密码功能，保存信息，能有的基本都有了。可以说是我心目中比较完美的一种程序,尽管还不完美.

头文件:

#ifndef _STUDENT_H_
#define _STUDENT_H_
#include
#include
#include
#include
#include
#include
#include
#include
#pragma comment(lib,"winmm.lib")
//设备信息
struct shebei
{
 char snumber[20];
 char sname[20];
 int sprice;
 int year;
 int month;
 int day;
 shebei *next;
};
//改变输出位置
void gotoxy(int x,int y)
{
 COORD coord;
 coord.X = y;
 coord.Y = x;
 HANDLE handle = GetStdHandle(STD_OUTPUT_HANDLE);
 SetConsoleCursorPosition(handle,coord);
}
//改变文本颜色
void set_color(int x)
{
 HANDLE handle = GetStdHandle(STD_OUTPUT_HANDLE);
 SetConsoleTextAttribute(handle,x);
}
//隐藏光标
void cursor_hidden(int x,int y)
{
 CONSOLE_CURSOR_INFO info = {x,y};
 SetConsoleCursorInfo(GetStdHandle(STD_OUTPUT_HANDLE),&info);
}
#endif _STUDENT_H_.

源文件:

#include "head_file.h"
void start();//欢迎界面
shebei *password_input(shebei *head);//输入密码界面
void position_select(shebei *head);//功能选择界面
void position_tuichu(shebei *head);//退出系统功能
void position_add_out();//添加设备功能界面
shebei *position_add_add(shebei *head);//添加设备信息功能实现
void position_print(shebei *head);//输出设备信息
void position_keep(shebei *head);//保存设备信息
shebei *position_sort(shebei *head);//为设备信息排序功能
void position_find(shebei *head);//查询设备信息功能界面
void position_find_find(shebei *head,int select);//查询设备信息
void position_set_password();//设置密码功能
void position_count(shebei *head);//统计设备信息
void position_change(shebei *head);//设备信息更改功能菜单
shebei *position_change_change(shebei *head);//设备信息更改功能
void position_delete(shebei *head);//设备信息删除菜单
shebei* position_delete_delete(shebei *head,int select);
shebei *head = NULL;//链表头部
int main()
{
 cursor_hidden(1,0);
 start();
 return 0;
}
//欢迎界面
void start()
{
 int i = 18;
 int s = 1;
 int k;
 int select = 14;
 int n = 0,l = 1;
 int n2 = 73;
 int solo = 0;
 if(access("music/title.wav",0)==0)
  PlaySound("music/title.wav",NULL,SND_FILENAME|SND_ASYNC|SND_LOOP);
 while(1)
 {
  k = 0;
  system("cls");
  set_color(i);
  gotoxy(k++,15);printf("*******************************************\n");
  gotoxy(k++,15);printf("| ##  ##  #####   ##     ##       ######  |\n");
  gotoxy(k++,15);printf("| ##  ##  #       ##     ##       #    #  |\n");
  gotoxy(k++,15);printf("| ######  #####   ##     ##       #    #  |\n");
  gotoxy(k++,15);printf("| ##  ##  #       ##     ##       #    #  |\n");
  gotoxy(k++,15);printf("| ##  ##  #####   #####  #####    ######  |\n");
  gotoxy(k++,15);printf("*******************************************\n");
  gotoxy(9,n);set_color(0xa);printf("welcome");
  gotoxy(10,n2);printf("you");
  gotoxy(14,33);printf("进入系统\n");
  gotoxy(15,33);printf("退出系统\n");
  gotoxy(18,30);printf("w - 上 s - 下\n");
  gotoxy(19,30);printf("enter - 确定\n");
  gotoxy(22,30);printf("制作:第六组\n");
  set_color(13);gotoxy(select,30);printf("->");
  solo++;
  if(solo==5)
  {
      if(l==1)
   {
    n++;
    n2--;
   }
   if(n==73)
   {
    l=0;
   }
   if(l==0)
   {
    n--;
    n2++;
   }
   if(n==0)
   {
    l=1;
   }
   solo = 0;
  }
  if(GetKeyState('W')<0)
  {
   if(select==14)
    select = 15;
   else
    select--;
   getch();
   Sleep(100);
  }
  if(GetKeyState('S')<0)
  {
   if(select==15)
    select = 14;
   else
    select++;
   getch();
   Sleep(100);
  }
  s++;
  if(s==50)
  {
   i++;
   s = 1;
  }
  if(i==30)
   i = 18;
  if(GetKeyState(VK_RETURN)<0)
  {
   getch();
   if(access("music/enter.wav",0)==0)
    PlaySound("music/enter.wav",NULL,NULL);
   switch(select)
   {
   case 14:
    {
     head = password_input(head);
     position_select(head);
    }
    break;
   case 15:
    {
     position_tuichu(head);
     break;
    }
   }
   Sleep(200);
  }
 }
}
//输入密码界面
shebei *password_input(shebei *head)
{
 system("cls");
 FILE *fp,*fp1;
 shebei *p,*q;
 auto char m[20],k[20];
 if(access("dat/password1.dat",1)==0)
 {
  if((fp1=fopen("dat/password1.dat","rb"))==0)
  {
   cout<<"打开文件错误"<    exit(0);
  }
  if(ftell(fp1)!=0)
   rewind(fp1);
  fread(m,sizeof(m),1,fp1);
  while(1)
  {
   gotoxy(10,22);printf("请输入密码\n");
   gotoxy(11,22);
   int i = 0;
   while(1)
   {
    k[i]=getch();
    if(k[i]=='\r')
     break;
    putchar('*');
    i++;
   }
   k[i] = 0;
   if(strcmp(m,k)==0)
    break;
   system("cls");
   gotoxy(10,22);printf("输入密码错误\n");
   Sleep(1000);
   system("cls");
  }
  fclose(fp1);
  Sleep(200);
 }
 if(access("dat/data1.txt",1)==0)
 {
  if((fp=fopen("dat/data1.txt","r"))==NULL)
  {
   cout<<"打开文件错误";
   exit(0);
  }
  if(ftell(fp)!=0)
   rewind(fp);
  while(!feof(fp))
  {
   p = (shebei *)malloc(sizeof(shebei));
   fscanf(fp,"%s %s %d %d %d %d\n",p->snumber,p->sname,&p->sprice,&p->year,&p->month,&p->day);
   p -> next = NULL;
   if(head==NULL)
   {
    head = p;
   }
   else
   {
    q = head;
    while(q->next!=NULL)
     q = q -> next;
    q -> next= p;
   }
  }
  fclose(fp);
 }
    return head;
}
//功能选择界面
void position_select(shebei *head)
{
 int k;
 int select = 7;
 while(1)
 {
  k = 6;
  system("cls");
  system("color 0a");
  gotoxy(k++,15);printf("************************************************\n");
  gotoxy(k++,15);printf("*     1.添加设备信息                           *\n");
  gotoxy(k++,15);printf("*     2.更改设备信息                           *\n");
  gotoxy(k++,15);printf("*     3.删除设备信息                           *\n");
  gotoxy(k++,15);printf("*     4.查询设备信息                           *\n");
  gotoxy(k++,15);printf("*     5.显示设备信息                           *\n");
        gotoxy(k++,15);printf("*     6.统计设备信息                           *\n");
  gotoxy(k++,15);printf("*     7.为设备信息排序                         *\n");
  gotoxy(k++,15);printf("*     8.设置密码                               *\n");
  gotoxy(k++,15);printf("*     9.退出程序                               *\n");
  gotoxy(k++,15);printf("************************************************\n");
  if(GetKeyState('W')<0)
  {
   if(select==7)
    select = 15;
   else
    select--;
   getch();
   Sleep(100);
  }
  if(GetKeyState('S')<0)
  {
   if(select==15)
    select = 7;
   else
    select++;
   getch();
   Sleep(100);
  }
  gotoxy(select,17);set_color(12);printf("->");
  if(GetKeyState(VK_RETURN)<0)
  {
   getch();
   if(access("music/enter.wav",0)==0)
    PlaySound("music/enter.wav",NULL,NULL);
   switch(select)
   {
   case 7:
    position_add_out();
    break;
   case 8:
    {
     position_change(head);
    }
    break;
   case 9:
    {
     position_delete(head);
    }
    break;
   case 10:
    {
     position_find(head);
    }
    break;
   case 11:
    {
     position_print(head);
    }
    break;
   case 12:
    {
     position_count(head);
    }
    break;
   case 13:
    {
     head = position_sort(head);
    }
    break;
   case 14:
    {
     position_set_password();
    }
    break;
   case 15:
    {
     position_tuichu(head);
    }
    break;
   }
  }
 }
}
//退出功能
void position_tuichu(shebei *head)
{
 int result = MessageBox(NULL,"真的要离开吗"," ",MB_YESNO);
 switch(result)
 {
 case IDYES:
  {
   shebei *p,*q;
   p = head;
   while(p!=NULL)
   {
    q = p;
    p = p -> next;
    free(q);
   }
   p = NULL;
   q = NULL;
   head = NULL;
   exit(0);
  }
  break;
 case IDNO:
  {
   if(access("music/title.wav",0)==0)
    PlaySound("music/title.wav",NULL,SND_FILENAME|SND_ASYNC|SND_LOOP);
   return ;
  }
 }
 return ;
}
//添加设备信息
void position_add_out()
{
 system("cls");
 int select = 7;
 while(1)
 {
  int k = 6;
  system("cls");
  set_color(7);
  gotoxy(k++,15);printf("*****************************************\n");
  gotoxy(k++,15);printf("*     1.添加信息                        *\n");
  gotoxy(k++,15);printf("*     2.保存信息                        *\n");
  gotoxy(k++,15);printf("*     3.查看信息                        *\n");
  gotoxy(k++,15);printf("*     4.返回上一级                      *\n");
  gotoxy(k++,15);printf("*****************************************\n");
  if(GetKeyState('W')<0)
  {
   if(select==7)
    select = 10;
   else
    select--;
   getch();
   Sleep(100);
  }
  if(GetKeyState('S')<0)
  {
   if(select==10)
    select = 7;
   else
    select++;
   getch();
   Sleep(100);
  }
  gotoxy(select,17);set_color(12);printf("->");
  if(GetKeyState(VK_RETURN)<0)
  {
   getch();
   if(access("music/enter.wav",0)==0)
    PlaySound("music/enter.wav",NULL,NULL);
   switch(select)
   {
   case 7:
    head = position_add_add(head);
    break;
   case 8:
    position_keep(head);
    break;
   case 9:
    {
     position_print(head);
    }
    break;
   case 10:
    return ;
   }
  }
 }
}
//添加设备信息功能实现
shebei *position_add_add(shebei *head)
{
 int stick = 1;
 cursor_hidden(1,1);
 shebei *p,*q,*h;
 p = head;
 set_color(0xd);
 while(stick)
 {
  p = (shebei*)malloc(sizeof(shebei));
  while(1)
  {
   while(1)
   {
    int i;
    system("cls");
    gotoxy(10,22);printf("请输入学生编号:");
    gotoxy(11,22);scanf("%s",p->snumber);
    for(i=0;(p->snumber[i])!=0;i++)
    {
     if(!((p->snumber[i])>='0'&&(p->snumber[i])<='9'))
     {
      system("cls");gotoxy(10,22);printf("输入数据错误，请重新输入");Sleep(1000);system("cls");
      fflush(stdin);
      break;
     }
    }
    if(p->snumber[i]==0)
     break;
   }
   h = head;
   while(h!=NULL)
   {
    if(strcmp(h->snumber,p->snumber)==0)
     break;
    h = h -> next;
   }
   if(h==NULL)
    break;
            system("cls");gotoxy(10,22);printf("输入编号重复，请重新输入");Sleep(1000);system("cls");
  }
  system("cls");
  gotoxy(10,22);printf("请输入设备名称:");
  gotoxy(11,22);scanf("%s",p->sname);
  while(1)
  {
   system("cls");
   gotoxy(10,22);printf("请输入设备价格:");
   gotoxy(11,22);if(scanf("%d",&p->sprice)==1&&(p->sprice)>0)
    break;
   system("cls");gotoxy(10,22);printf("输入数据错误，请重新输入");Sleep(1000);system("cls");
   fflush(stdin);
  }
  int i = 0;
  int s[2][12] = {{31,28,31,30,31,30,31,31,30,31,30,31},{31,29,31,30,31,30,31,31,30,31,30,31}};
  while(1)
  {
   system("cls");gotoxy(10,22);printf("请输入购买年份");
   gotoxy(11,22);if(scanf("%d",&p->year)==1&&p->year>0)
    break;
   system("cls");gotoxy(10,22);printf("输入数据错误，请重新输入");Sleep(1000);system("cls");
   fflush(stdin);
  }
  if((p->year)%4==0&&(p->year)%100!=0||p->year%400==0)
   i = 1;
  while(1)
  {
   system("cls");gotoxy(10,22);printf("请输入购买月份");
   gotoxy(11,22);if(scanf("%d",&p->month)==1&&p->month>=1&&p->month<=12)
    break;
   system("cls");gotoxy(10,22);printf("输入数据错误，请重新输入");Sleep(1000);system("cls");
   fflush(stdin);
  }
  while(1)
  {
   system("cls");gotoxy(10,22);printf("请输入购买日");
   gotoxy(11,22);if(scanf("%d",&p->day)==1&&p->day>=1&&p->day<=s[i][p->month-1])
    break;
   system("cls");gotoxy(10,22);printf("输入数据错误，请重新输入");Sleep(1000);system("cls");
   fflush(stdin);
  }
  p->next = NULL;
  if(head==NULL)
  {
   head = p;
  }
  else
  {
   q = head;
   while(q->next!=NULL)
    q = q -> next;
   q -> next= p;
  }
  Sleep(200);
  system("cls");
  while(1)
  {
   system("cls");
   gotoxy(10,22);printf("是否要继续输入");
   gotoxy(11,22);printf("1.是");
   gotoxy(12,22);printf("0.否");
   gotoxy(13,22);
   if(scanf("%d",&stick)==1&&stick==0||stick==1)
    break;
   fflush(stdin);
   system("cls");gotoxy(10,22);printf("输入数据错误，请重新输入");Sleep(1000);
  }
    }
 cursor_hidden(1,0);
 Sleep(200);
 return head;
}
//显示设备信息
void position_print(shebei *head)
{
 system("cls");
 shebei *p;
 int select;system("color 1a");
 while(1)
 {
  select = 0;
  p = head;
  gotoxy(select++,0);printf("************************************************************************\n");
  gotoxy(select++,0);printf("学生编号           设备名称             价格      年—月—日\n");
  while(p!=NULL)
  {
   gotoxy(select++,0);
   printf("%-20s%-20s%-10d%-4d-%-2d-%-2d\n",p->snumber,p->sname,p->sprice,p->year,p->month,p->day);
   p = p -> next;
  }
  gotoxy(select++,0);printf("************************************************************************\n");
  gotoxy(select++,28);printf("按enter返回上一级\n");
  if(GetKeyState(VK_RETURN)<0)
  {
   if(access("music/enter.wav",0)==0)
    PlaySound("music/enter.wav",NULL,NULL);
   getch();
   Sleep(200);
   return ;
  }
 }
}
//保存设备信息
void position_keep(shebei *head)
{
 FILE *fp1;
 shebei *p;
 fp1 = fopen("dat/data1.txt","w");
 if(fp1==NULL)
 {
  cout<<"文件打开失败"<   exit(0);
 }
 p = head;
 while(p!=NULL)
 {
  fprintf(fp1,"%s %s %d %d %d %d\n",p->snumber,p->sname,p->sprice,p->year,p->month,p->day);
  p = p -> next;
 }
 fclose(fp1);
 MessageBox(NULL,"数据已保存"," ",NULL);
 return ;
}
//为设备排序功能菜单
shebei *position_sort(shebei *head)
{
 system("cls");
 int select = 7;
 while(1)
 {
  int k = 6;
  system("cls");
  set_color(0x0d);
  gotoxy(k++,15);printf("*****************************************\n");
  gotoxy(k++,15);printf("*     1.按学生编号排序                  *\n");
  gotoxy(k++,15);printf("*     2.按设备名称排序                  *\n");
  gotoxy(k++,15);printf("*     3.按价格排序                      *\n");
  gotoxy(k++,15);printf("*     4.返回上一级                      *\n");
  gotoxy(k++,15);printf("*****************************************\n");
  if(GetKeyState('W')<0)
  {
   if(select==7)
    select = 10;
   else
    select--;
   getch();
   Sleep(100);
  }
  if(GetKeyState('S')<0)
  {
   if(select==10)
    select = 7;
   else
    select++;
   getch();
   Sleep(100);
  }
  gotoxy(select,17);set_color(12);printf("->");
  if(GetKeyState(VK_RETURN)<0)
  {
   getch();
   if(access("music/enter.wav",0)==0)
    PlaySound("music/enter.wav",NULL,NULL);
   switch(select)
   {
   case 7:
    {
     shebei *temp,*q,*p;
     for(q=head;q->next!=NULL;q=q->next)
      for(p=q->next;p->next!=NULL;p=p->next)
      {
       if(strcmp(p->next->snumber,q->next->snumber)<0)
       {
        if(q->next==p)
        {
         temp=p->next;
         p->next=p->next->next;
         temp->next=p;
         q->next=temp;
         p=temp;
        }
        else
        {
         temp=p->next;
         p->next=q->next;
         q->next=temp;
         temp=p->next->next;
         p->next->next=q->next->next;
         q->next->next=temp;
        }
       }
      }
    }
    MessageBox(NULL,"排序已完成"," ",NULL);
    break;
   case 8:
    {
     shebei *temp,*q,*p;
     for(q=head;q->next!=NULL;q=q->next)
      for(p=q->next;p->next!=NULL;p=p->next)
      {
       if(strcmp(p->next->sname,q->next->sname)<0)
       {
        if(q->next==p)
        {
         temp=p->next;
         p->next=p->next->next;
         temp->next=p;
         q->next=temp;
         p=temp;
        }
        else
        {
         temp=p->next;
         p->next=q->next;
         q->next=temp;
         temp=p->next->next;
         p->next->next=q->next->next;
         q->next->next=temp;
        }
       }
      }
    }
    MessageBox(NULL,"排序已完成","",NULL);
    break;
   case 9:
    {
     shebei *temp,*q,*p;
     for(q=head;q->next!=NULL;q=q->next)
      for(p=q->next;p->next!=NULL;p=p->next)
      {
       if(p->next->spricenext->sprice)
       {
        if(q->next==p)
        {
         temp=p->next;
         p->next=p->next->next;
         temp->next=p;
         q->next=temp;
         p=temp;
        }
        else
        {
         temp=p->next;
         p->next=q->next;
         q->next=temp;
         temp=p->next->next;
         p->next->next=q->next->next;
         q->next->next=temp;
        }
       }
      }
    }
    MessageBox(NULL,"排序已完成","",NULL);
    break;
   case 10:
    return head;
   }
  }
 }
}
//查询设备信息功能菜单
void position_find(shebei *head)
{
 system("cls");
 int select = 7;
 while(1)
 {
  int k = 6;
  system("cls");set_color(11);
  gotoxy(k++,15);printf("*****************************************\n");
  gotoxy(k++,15);printf("*     1.按学生编号查找                  *\n");
  gotoxy(k++,15);printf("*     2.按设备名称查找                  *\n");
  gotoxy(k++,15);printf("*     3.按价格查找                      *\n");
  gotoxy(k++,15);printf("*     4.按年份查找                      *\n");
  gotoxy(k++,15);printf("*     5.返回上一级                      *\n");
  gotoxy(k++,15);printf("*****************************************\n");
  if(GetKeyState('W')<0)
  {
   if(select==7)
    select = 11;
   else
    select--;
   getch();
   Sleep(100);
  }
  if(GetKeyState('S')<0)
  {
   if(select==11)
    select = 7;
   else
    select++;
   getch();
   Sleep(100);
  }
  gotoxy(select,17);set_color(12);printf("->");
  if(GetKeyState(VK_RETURN)<0)
  {
   getch();
   if(access("music/enter.wav",0)==0)
    PlaySound("music/enter.wav",NULL,NULL);
   switch(select)
   {
   case 7:
   case 8:
   case 9:
   case 10:
    position_find_find(head,select);
    break;
   case 11:
    return ;
   }
  }
 }
}
//查询设备信息
void position_find_find(shebei *head,int select)
{
 shebei *p;
 int select2;
 p = head;
 switch(select)
 {
 case 7:
  {
   auto char number[20];
   system("cls");
   set_color(7);
   cursor_hidden(1,1);
   while(1)
   {
    int i;
    system("cls");
    gotoxy(10,22);printf("请输入学生编号:");
    gotoxy(11,22);scanf("%s",number);
    for(i=0;(number[i])!=0;i++)
    {
     if(!(number[i]>='0'&&number[i]<='9'))
     {
      system("cls");gotoxy(10,22);printf("输入数据错误，请重新输入");Sleep(1000);system("cls");
      fflush(stdin);
      break;
     }
    }
    if(number[i]==0)
     break;
   }
   cursor_hidden(1,0);
   Sleep(200);
   while(p!=NULL)
   {
    if(strcmp(number,p->snumber)==0)
    {
     system("cls");
     while(1)
     {
      select2 = 0;
      gotoxy(select2++,0);printf("************************************************************************\n");
      gotoxy(select2++,0);printf("学生编号           设备名称             价格      年—月—日\n");
      gotoxy(select2++,0);printf("%-20s%-20s%-10d%-4d-%-2d-%-2d\n",p->snumber,p->sname,p->sprice,p->year,p->month,p->day);
      gotoxy(select2++,0);printf("************************************************************************\n");
      gotoxy(select2++,28);printf("按enter返回上一级\n");
      if(GetKeyState(VK_RETURN)<0)
      {
       getch();
       if(access("music/enter.wav",0)==0)
        PlaySound("music/enter.wav",NULL,NULL);
       Sleep(200);
       return ;
      }
     }
    }
    p = p -> next;
   }
   MessageBox(NULL,"没有找到","",NULL);  
   return ;
  }
 case 8:
  {
   auto char name[20];
   system("cls");
   set_color(0xb);
   gotoxy(8,20);cout<<"请输入要查找的设备名称"<    cursor_hidden(1,1);
   gotoxy(9,20);scanf("%s",name);
   cursor_hidden(1,0);
   Sleep(200);
   system("cls");
   while(1)
   {
    p = head;
    select2 = 0;
    gotoxy(select2++,0);printf("************************************************************************\n");
    gotoxy(select2++,0);printf("学生编号           设备名称             价格      年—月—日\n");
    while(p!=NULL)
    {
     if(strcmp(name,p->sname)==0)
     {
      gotoxy(select2++,0);printf("%-20s%-20s%-10d%-4d-%-2d-%-2d\n",p->snumber,p->sname,p->sprice,p->year,p->month,p->day);
     }
     p = p -> next;
    }
    gotoxy(select2++,0);printf("************************************************************************\n");
    gotoxy(select2++,28);printf("按enter返回上一级\n");
    if(GetKeyState(VK_RETURN)<0)
    {
     getch();
     if(access("music/enter.wav",0)==0)
      PlaySound("music/enter.wav",NULL,NULL);
     Sleep(200);
     return ;
    }               
   }
  }
 case 9:
  {
   int price;
   system("cls");
   set_color(0xb);
   cursor_hidden(1,1);
   while(1)
   {
    system("cls");gotoxy(10,22);cout<<"请输入要查询的价格"<                 gotoxy(11,22);if(scanf("%d",&price)==1&&price>0)
     break;
    fflush(stdin);
    system("cls");gotoxy(10,22);cout<<"输入数据错误，请重新输入";Sleep(1000);system("cls");
   }
   cursor_hidden(1,0);
   Sleep(200);
   system("cls");
   while(1)
   {
    p = head;
    select2 = 0;
    gotoxy(select2++,0);printf("************************************************************************\n");
    gotoxy(select2++,0);printf("学生编号           设备名称             价格      年—月—日\n");
    while(p!=NULL)
    {
     if(price==p->sprice)
     {
      gotoxy(select2++,0);printf("%-20s%-20s%-10d%-4d-%-2d-%-2d\n",p->snumber,p->sname,p->sprice,p->year,p->month,p->day);
     }
     p = p -> next;
    }
    gotoxy(select2++,0);printf("************************************************************************\n");
    gotoxy(select2++,28);printf("按enter返回上一级\n");
    if(GetKeyState(VK_RETURN)<0)
    {
     getch();
     if(access("music/enter.wav",0)==0)
      PlaySound("music/enter.wav",NULL,NULL);
     Sleep(200);
     return ;
    }               
   }
  }
 case 10:
  {
   int year;
   set_color(8);
   cursor_hidden(1,1);
   while(1)
   {
    system("cls");gotoxy(10,22);cout<<"请输入要查询的年份"<                 gotoxy(11,22);if(scanf("%d",&year)==1)
     break;
    fflush(stdin);
    system("cls");gotoxy(10,22);cout<<"输入数据错误，请重新输入";Sleep(1000);system("cls");
   }
   cursor_hidden(1,0);
   Sleep(200);
   system("cls");
   while(1)
   {
    p = head;
    select2 = 0;
    gotoxy(select2++,0);printf("************************************************************************\n");
    gotoxy(select2++,0);printf("学生编号           设备名称             价格      年—月—日\n");
    while(p!=NULL)
    {
     if(year==p->year)
     {
      gotoxy(select2++,0);printf("%-20s%-20s%-10d%-4d-%-2d-%-2d\n",p->snumber,p->sname,p->sprice,p->year,p->month,p->day);
     }
     p = p -> next;
    }
    gotoxy(select2++,0);printf("************************************************************************\n");
    gotoxy(select2++,28);printf("按enter返回上一级\n");
    if(GetKeyState(VK_RETURN)<0)
    {
     getch();
     if(access("music/enter.wav",0)==0)
      PlaySound("music/enter.wav",NULL,NULL);
     Sleep(200);
     return ;
    }               
   }
  }  
 }
}
//设置密码功能
void position_set_password()
{
 system("cls");
 auto char s[20];
 FILE *fp1;
 set_color(15);
 gotoxy(10,22);printf("请输入一个新的密码:\n");
 gotoxy(11,22);scanf("%s",s);
 fp1 = fopen("dat/password1.dat","w");
 if(fp1==NULL)
 {
  cout<<"文件未被打开"<   exit(0);
 }
 fwrite(&s,sizeof(s),1,fp1);
 fclose(fp1);
 Sleep(200);
 return ;
}
//设备信息统计
void position_count(shebei *head)
{
 set_color(0xb);
 int select2;
 shebei *p;
 p = head;
 int count = 0;
 int i;
 int s;
 while(p!=NULL)
 {
  p = p -> next;
  count++;
 }
 p = head;
 char *h;
 int *q;
 h = (char *)calloc(count,20*sizeof(char *));
 q = (int *)calloc(count,sizeof(int));
 s = 0;
 while(p!=NULL)
 {
  if(s==0)
  {
   strcpy(h,p->sname);
   s++;
   (*q)++;
  }
  else
  {
   for(i=0;i    { 
    if(strcmp(h+i*20*sizeof(char),p->sname)==0)
    {
     (*(q+i))++;
     break;
    }
   }
   if(i==s)
   {
    strcpy(h+i*20*sizeof(char),p->sname);
    (*(q+s))++;
    s++;
   }
  }
  p = p -> next;
 }
 while(1)
 {
  system("cls");
  select2 = 0;
  gotoxy(select2++,20);printf("********************************\n");
  gotoxy(select2++,20);printf("|设备名称       设备数量       |\n");
  for(i=0;i   {
   gotoxy(select2++,20);printf("|%-20s%-10d|\n",h+i*20*sizeof(char),*(q+i));
  }
  gotoxy(select2++,20);printf("********************************\n");
  gotoxy(select2++,28);printf("按enter返回上一级\n");
  if(GetKeyState(VK_RETURN)<0)
  {
   getch();
   if(access("music/enter.wav",0)==0)
    PlaySound("music/enter.wav",NULL,NULL);
   Sleep(200);
   return ;
  }              
 }
}
//更改设备信息功能
void position_change(shebei *head)
{
 system("cls");
 int select = 7;
 while(1)
 {
  int k = 6;
  system("cls");
  set_color(15);
  gotoxy(k++,15);printf("*****************************************\n");
  gotoxy(k++,15);printf("*     1.按学生编号更改                  *\n");
  gotoxy(k++,15);printf("*     2.查看所有信息                    *\n");
  gotoxy(k++,15);printf("*     3.保存所有信息                    *\n");
  gotoxy(k++,15);printf("*     4.返回上一级                      *\n");
  gotoxy(k++,15);printf("*****************************************\n");
  if(GetKeyState('W')<0)
  {
   if(select==7)
    select = 10;
   else
    select--;
   getch();
   Sleep(100);
  }
  if(GetKeyState('S')<0)
  {
   if(select==10)
    select = 7;
   else
    select++;
   getch();
   Sleep(100);
  }
  gotoxy(select,17);set_color(12);printf("->");
  if(GetKeyState(VK_RETURN)<0)
  {
   getch();
   if(access("music/enter.wav",0)==0)
    PlaySound("music/enter.wav",NULL,NULL);
   switch(select)
   {
   case 7:
    head = position_change_change(head);
    break;
   case 8:
    position_print(head);
    break;
   case 9:
    position_keep(head);
    break;
   case 10:
    return ;
   }
  }
 }
}
//更改设备信息
shebei *position_change_change(shebei *head)
{
 auto char number[20];
 shebei *p;
 int k;
 int select = 7;
 int select2;
 system("cls");cursor_hidden(1,1);
 set_color(0xa);
 while(1)
 {
  int i;
  system("cls");
  gotoxy(10,22);printf("请输入学生编号:");
  gotoxy(11,22);scanf("%s",number);
  for(i=0;(number[i])!=0;i++)
  {
   if(!((number[i])>='0'&&(number[i])<='9'))
   {
    system("cls");gotoxy(10,22);printf("输入数据错误，请重新输入");Sleep(1000);system("cls");
    fflush(stdin);
    break;
   }
  }
  if(number[i]==0)
   break;
 }
 cursor_hidden(1,0);
 Sleep(200);
 p = head;
 while(p!=NULL&&strcmp(p->snumber,number)!=0)
 {
  p = p -> next;
 }
 if(p==NULL)
 {
  MessageBox(NULL,"没有找到信息"," ",NULL);
  return head;
 }
 else
 {
  while(1)
  {
   system("cls");k = 6;
   set_color(15);
   gotoxy(k++,15);printf("*****************************************\n");
   gotoxy(k++,15);printf("*     1.查看信息                        *\n");
   gotoxy(k++,15);printf("*     2.修改设备名称                    *\n");
   gotoxy(k++,15);printf("*     3.修改设备价格                    *\n");
   gotoxy(k++,15);printf("*     4.修改设备生产日期                *\n");
            gotoxy(k++,15);printf("*     5.返回上一级                      *\n");
            gotoxy(k++,15);printf("*****************************************\n");
   if(GetKeyState('W')<0)
   {
    if(select==7)
     select = 11;
    else
     select--;
    getch();
    Sleep(100);
   }
   if(GetKeyState('S')<0)
   {
    if(select==11)
     select = 7;
    else
     select++;
    getch();
    Sleep(100);
   }
   gotoxy(select,17);set_color(12);printf("->");
   if(GetKeyState(VK_RETURN)<0)
   {
    getch();
    if(access("music/enter.wav",0)==0)
     PlaySound("music/enter.wav",NULL,NULL);
    switch(select)
    {
    case 7:
     {
      while(1)
      {
       system("color f");
       select2 = 0;system("cls");
       gotoxy(select2++,20);printf("*******************************\n");
       gotoxy(select2++,20);printf("*学生编号%20s *\n",p->snumber);
       gotoxy(select2++,20);printf("*设备名称%20s *\n",p->sname);
       gotoxy(select2++,20);printf("*设备价格%20d *\n",p->sprice);
       gotoxy(select2++,20);printf("*年      %20d *\n",p->year);
       gotoxy(select2++,20);printf("*月      %20d *\n",p->month);
       gotoxy(select2++,20);printf("*日      %20d *\n",p->day);
       gotoxy(select2++,20);printf("*******************************\n");
       gotoxy(select2++,28);printf("按enter返回上一级\n");
       if(GetKeyState(VK_RETURN)<0)
       {
        getch();
        if(access("music/enter.wav",0)==0)
         PlaySound("music/enter.wav",NULL,NULL);
        Sleep(200);
        break;
       }
      }
      break;
     }
    case 8:
     {
      cursor_hidden(1,1);
      system("cls");
      gotoxy(10,22);printf("请输入设备名称:\n");
      gotoxy(11,22);scanf("%s",p->sname);
      cursor_hidden(1,0);
      Sleep(200);
     }
     break;
    case 9:
     {
      cursor_hidden(1,1);
      while(1)
      {
       system("cls");
       gotoxy(10,22);printf("请输入设备价格:\n");
       gotoxy(11,22);if(scanf("%d",&p->sprice)==1&&(p->sprice)>0)
        break;
       system("cls");gotoxy(10,22);printf("输入数据错误，请重新输入");Sleep(1000);system("cls");
       fflush(stdin);
      }
      Sleep(200);
      cursor_hidden(1,0);
     }
     break;
    case 10:
     {
      cursor_hidden(1,1);
      int i = 0;
      int s[2][12] = {{31,28,31,30,31,30,31,31,30,31,30,31},{31,29,31,30,31,30,31,31,30,31,30,31}};
      while(1)
      {
       system("cls");gotoxy(10,22);printf("请输入购买年份\n");
       gotoxy(11,22);if(scanf("%d",&p->year)==1&&p->year>0)
        break;
       system("cls");gotoxy(10,22);printf("输入数据错误，请重新输入");Sleep(1000);system("cls");
       fflush(stdin);
      }
      if((p->year)%4==0&&(p->year)%100!=0||p->year%400==0)
       i = 1;
      while(1)
      {
       system("cls");gotoxy(10,22);printf("请输入购买月份\n");
       gotoxy(11,22);if(scanf("%d",&p->month)==1&&p->month>=1&&p->month<=12)
        break;
       system("cls");gotoxy(10,22);printf("输入数据错误，请重新输入");Sleep(1000);system("cls");
       fflush(stdin);
      }
      while(1)
      {
       system("cls");gotoxy(10,22);printf("请输入购买日");
       gotoxy(11,22);if(scanf("%d",&p->day)==1&&p->day>=1&&p->day<=s[i][p->month-1])
        break;
       system("cls");gotoxy(10,22);printf("输入数据错误，请重新输入");Sleep(1000);system("cls");
       fflush(stdin);
      }
      cursor_hidden(1,0);
      Sleep(200);
     }
     break;
    case 11:
     return head;
    }
   }
  }
 }
}
//设备信息删除功能菜单
void position_delete(shebei *head)
{
 system("cls");
 int select = 7;
 while(1)
 {
  int k = 6;
  system("cls");
  set_color(0x0d);
  gotoxy(k++,15);printf("*****************************************\n");
  gotoxy(k++,15);printf("*     1.按学生编号删除                  *\n");
  gotoxy(k++,15);printf("*     2.查看信息                        *\n");
  gotoxy(k++,15);printf("*     3.保存所有信息                    *\n");
  gotoxy(k++,15);printf("*     4.返回上一级                      *\n");
  gotoxy(k++,15);printf("*****************************************\n");
  if(GetKeyState('W')<0)
  {
   if(select==7)
    select = 10;
   else
    select--;
   getch();
   Sleep(100);
  }
  if(GetKeyState('S')<0)
  {
   if(select==10)
    select = 7;
   else
    select++;
   getch();
   Sleep(100);
  }
  gotoxy(select,17);set_color(12);printf("->");
  if(GetKeyState(VK_RETURN)<0)
  {
   getch();
   if(access("music/enter.wav",0)==0)
    PlaySound("music/enter.wav",NULL,NULL);
   switch(select)
   {
   case 7:
    head = position_delete_delete(head,select);
    break;
   case 8:
    position_print(head);
    break;
   case 9:
    position_keep(head);
    break;
   case 10:
    return ;
   }
   Sleep(200);
  }
 }
}
//设备信息删除功能
shebei *position_delete_delete(shebei *head,int select)
{
 shebei *p,*q;
 char snumber[20],name[20];
 int select2;
 set_color(0x0d);
 if(head==NULL)
 {
  MessageBox(NULL,"无信息可以删除","",NULL);
  return head;
 }
 else
 {
  while(1)
  {
   int i;
   system("cls");
   gotoxy(10,22);printf("请输入学生编号:\n");
   gotoxy(11,22);scanf("%s",snumber);
   for(i=0;(snumber[i])!=0;i++)
   {
    if(!((snumber[i])>='0'&&(snumber[i])<='9'))
    {
     system("cls");gotoxy(10,22);printf("输入数据错误，请重新输入");Sleep(1000);system("cls");
     fflush(stdin);
     break;
    }
   }
   if(snumber[i]==0)
    break;
  }
  Sleep(200);
  p = head;
  while(p!=NULL&&strcmp(p->snumber,snumber)!=0)
  {
   q = p;
   p = p -> next;
  }
  if(p!=NULL)
  {
   while(1)
   {
    select2 = 0;system("cls");
    gotoxy(select2++,20);printf("该名学生的信息是:");
    gotoxy(select2++,20);printf("*******************************\n");
    gotoxy(select2++,20);printf("*学生编号%20s *\n",p->snumber);
    gotoxy(select2++,20);printf("*设备名称%20s *\n",p->sname);
    gotoxy(select2++,20);printf("*设备价格%20d *\n",p->sprice);
    gotoxy(select2++,20);printf("*年      %20d *\n",p->year);
    gotoxy(select2++,20);printf("*月      %20d *\n",p->month);
    gotoxy(select2++,20);printf("*日      %20d *\n",p->day);
    gotoxy(select2++,20);printf("*******************************\n");
    gotoxy(select2++,28);printf("按enter删除信息\n");
    gotoxy(select2++,28);printf("按o键取消");
    if(GetKeyState(VK_RETURN)<0)
    {
     getch();
     if(access("music/enter.wav",0)==0)
      PlaySound("music/enter.wav",NULL,NULL);
     if(p==head)
      head = p -> next;
     else
      q -> next = p -> next;
     free(p);
     Sleep(200);
     return head;
    }
    else if(GetKeyState('O')<0)
    {
     getch();
     if(access("music/enter.wav",0)==0)
      PlaySound("music/enter.wav",NULL,NULL);
     Sleep(200);
     return head;
    }
   }
  }
  else
  {
   MessageBox(NULL,"未找到该生信息"," ",NULL);
   return head;
  }
 }
}