1000.txt

一个C++的火车管理系统

#include <string.h>
#include <malloc.h>
#include <iostream.h>
#include <conio.h>

typedef struct node
{  char n[20];
   char ccnum[20];
   char time[10];
   struct node *next;
}NODE;
 
  class employee
  {
  private:
  NODE *p;
  NODE *q;
  NODE *t;
  public:
  employee(NODE *m); 
  void add();
  void printall();
  void print();
  void deleteall();
  void edit();
  void del();
  
  void tongji()
  {
  int sm=0;
  NODE *k;
  k=new NODE;
  k=p=q; 
  char n[20];
  cout<<"请输入站名:"<<endl;
  cin>>n;
  while (n)
  {
 k=p;
    p=p->next;
    if(p==t)
     {
   
      if(strcmp(q->n,n)==0)
   {
        sm++;
     
   }
   break;
    
     } 
   
  if(strcmp(p->n,n)==0)
  {
   sm++;
  }
  }
  
  if(sm==0) cout<<"查无次车"<<endl;
  cout<<"统计车次数目为："<<sm<<endl;
   
  }
 
  }; 


  employee::employee(NODE *m)
  { t=p=m;
  }

  void employee::del()
 { NODE *k;
  k=new NODE;
  k=p=q; 
  char n[20];
  cout<<"请输入车次号码:"<<endl;
  cin>>n;
  while (p!=t&&(strcmp(p->ccnum,n)!=0)!=0)
    {k=p;
    p=p->next;
     }
   if (p==t)
     {cout<<"查无此车!!"<<endl;
     }
  else
    {if (p==q)
    q=q->next;
    else
     k->next=p->next;
     free(p);
    }
  }  


  void employee::print()                                         
  { p=q;
  char n[20];
  cout<<"请输入车次号码:"<<endl;
  cin>>n;
  while (p!=t&&(strcmp(p->ccnum,n)!=0)!=0)
    {p=p->next;
     }
   if (p==t)
     {cout<<"查无此车!!"<<endl;
     }
  else
    { cout<<"经过站点名称:"<<p->n<<endl;
  cout<<"车次号码:"<<p->ccnum<<endl;
 
  cout<<"发车时间:"<<p->time<<endl;

    }
  cout<<"按任意键返回!!"<<endl;
   }


  void employee::edit()
 {
  p=q;
  char n[20];
  cout<<"请输入车次号码:"<<endl;
  cin>>n;
  while (p!=t&&(strcmp(p->ccnum,n)!=0)!=0)
    {p=p->next;
     }
   if (p==t)
     {cout<<"查无此车!!"<<endl;
     }
 else
 {cout<<"经过站点名称";
  cin>>p->n;
  cout<<"车次号码:";
  cin>>p->ccnum;
  
  cout<<"发车时间:";
  cin>>p->time;
 
      }
  cout<<"按任意键返回!!"<<endl;
  }


  void employee::add()
 {
  q= new NODE;
  q->next=p;
  p=q;
  cout<<"经过站点名称:";
  cin>>q->n;
  cout<<"车次号码:";
  cin>>q->ccnum;
  
  cout<<"发车时间:";
  cin>>q->time;
 
  
}
void employee::printall()
{
  p=q;
 while (q!=t)
  {
  cout<<"经过站点:"<<q->n<<endl;
  cout<<"车次号码:"<<q->ccnum<<endl;

  cout<<"开车时间:"<<q->time<<endl;

  q=q->next;
 
 }
  q=p; 
}
void employee::deleteall()
{

while (q!=t)
 {p=q;
 q=q->next;
 free(p);
 }
cout<<"所有信息已删除！" ;
}

 void display()
{  
     cout<<"\n              *********************欢迎使用本系统******************"<<endl;
  
  cout<<"\n********************************************************************************"<<endl;
                      cout<<"\n                        1:增加车次信息！"<<endl;
                      cout<<"\n                        2:修改车次信息！"<<endl;
                      cout<<"\n                        3:查找车次！"<<endl;
                      cout<<"\n                        4:显示车次信息！"<<endl;
                      cout<<"\n                        5:删除车次信息！"<<endl;
                      cout<<"\n                        6:删除所有车次信息！"<<endl;
                      cout<<"\n                        7:列车统计"<<endl;
                      cout<<"\n                        8:退出！"<<endl;  
   cout<<"\n********************************************************************************"<<endl;
}


  void main()                      
 {int j;
  char n[20],rna[10];
  NODE *pa;
  char i; 
  pa=(NODE*)malloc(sizeof(struct node)); 
  display();
  employee a(pa);
  while(i=getch())
  {
    switch(i)
     {
       case'1':a.add();getch();display();break;
       case'2':a.edit();getch();display();break;
       case'3':a.print();getch();display();break;
       case'4':a.printall();getch();display();break;
       case'5':a.del();getch();display();break;
       case'6':a.deleteall();getch();display();break;
    case'7':a.tongji();getch();display();break;
       case'8':cout<<"谢谢使用本系统!"<<endl;goto end;}
  }
end:   ;
}