VC++航空订票系统数据库设计 第4页
char Des[10];
 int i=2;
 while (i!=1)
 {
  cout<<"请输入目的地:"<<endl;
  cin>>Des;
        p=head;
  while (p->next&&strcmp(p->next->Des,Des))
  {
   p=p->next;
  }
  q=p->next;
  if (q==NULL)
  {
   cout<<"对不起不存在此航班"<<endl;
  }
  else
  {
   while(i!=1)
   {
    cout<<"输入需要够买的票数"<<endl;
    cin>>Ticket_Amount;
    while(Ticket_Amount==0)
    {
     cout<<"请输入一个非零数:"<<endl;
     cin>>Ticket_Amount;
    }
    if (Ticket_Amount<=q->FreeTicket)
    {
     BuyTicket(q,Ticket_Amount);
                 //买票，详细介绍见下文
    }
    else
    {
     int n;
     cout<<"剩余票数小于定票数，是否需要列入候补名单？(1、是 2、否)"<<endl;
     cin>>n;
     Buyreplace(q,Ticket_Amount,n);
                 //进入替补名单，详细介绍见下文
    }
    cout<<"1、返回主菜单 2、继续"<<endl;
    cin>>i;
   }
  }
 }
}

7． FlightCancelTicket()——退票
作为人性化的航空客运订票系统，不但要实现订票，还要实现退票。在退票方面，仍旧是利用链表，将乘客信息删除。但删除之后，如若有替补乘客，还要使其依照进入替补乘客的队列的次序出队来实现订票。其具体实现代码如下：
void FlightCancelTicket()   //退票
{
 
 void BuyTicket(PFlight ,int );
 Flight *p,*q;
 Customer *h,*j;
 char FlightNum[6];
 char Customer_Name[10];
 int Replace1_Amount;   //候补第一个人的定票数
 int i;
 while (i!=1)
 {
  cout<<"请输入需要退定的航班号:"<<endl;
  cin>>FlightNum;
  p=head;
  while (p->next&&strcmp(p->next->FlightNum,FlightNum))
  {
   p=p->next;
  }
  q=p->next;
  if (q==NULL)
  {
   cout<<"对不起不存在此航班"<<endl;
  }
  else
  {
   while (i!=2)
   {
    cout<<"请输入姓名:"<<endl;
    cin>>Customer_Name;
    h=q->CustName;
    while (h->next&&strcmp(h->next->Name,Customer_Name))
    {
     h=h->next;
    }
    j=h->next;
    if(j==NULL)
    {
     cout<<"查无此人"<<endl;
    }
    else
    {
     if(j->next==NULL){    //当删除最后一个结点
      Cusrear=h;
     }
     h->next=h->next->next;
     q->FreeTicket+=j->Amount;
     delete j;
     cout<<"删除成功！"<<endl;
     if(q->ReplName->next!=NULL)
     {
      Replace1_Amount=q->ReplName->next->Amount;
      if (Replace1_Amount<=q->FreeTicket)
      {
       Replace *rep;
       rep=q->ReplName->next;
       Customer *Cus2;
       Cus2=new Customer;
       Cus2->SeatNum=q->Ration-q->FreeTicket+1;
       strcpy(Cus2->FlightNum, q->FlightNum );
       strcpy(Cus2->Name, rep->Name );
       Cus2->Amount=rep->Amount;
       Cus2->Level=rep->Level;
       cout<<"乘客"<<rep->Name<<"已经成功买票 "<<endl;
       cout<<"座位号为:";
       for(int i=1;i<=(rep->Amount);i++)
       {
        cout<<Cus2->SeatNum++<<" ";
       }
       cout<<endl;
       if (q->CustName->next==NULL)
       {
        Cusrear=q->CustName;
        Cusrear->next=Cus2;
        Cusrear=Cus2;
        Cusrear->next=NULL;
       }
       else
       {
        Cusrear->next=Cus2;
        Cusrear=Cus2;
        Cusrear->next=NULL;
       }

上一页  [1] [2] [3] [4] [5] [6] 下一页