peo.cpp

c++书籍的源代码

//peo.cpp
#include"peo.h"
#include<iostream.h>
#include<string.h>
 peo::peo(const char *str)
{
 strcpy(name,str);
 cout<<"人员开始"<<endl;
}
 peo::~peo()
{
 if(strcmp(name,"empty")==0)
  return;
 else
 {
  cout<<"人员结束"<<endl;
  strcpy(name,"empty");
 }
}
 stu::stu(const char *str,double a):peo(str)
{
 score=a;
 cout<<"学生开始"<<endl;
}
 void stu::display(void)
{   
 cout<<"姓名："<<name<<"  "<<"成绩："<<score<<endl;
}
 stu::~stu()
{
 if(score==-1)
  return;
 else
 {
  cout<<"学生 "<<name<<"结束"<<endl;
  score=-1;
 }
}
 tec::tec(const char* str,int b):peo(str)
{
 age=b;
 cout<<"教师开始"<<endl;
}
 tec::~tec()
{
 if(age==1000)
  return;
 else
 {
  cout<<"教师 "<<name<<"结束"<<endl;
  age=1000;
 }
}
 void tec::display()
{
 cout<<"姓名："<<name<<"  "<<"年龄："<<age<<endl;
}
 list::list(void)
{
 head=0;
 cout<<"链表开始"<<endl;
}
 list::~list()
{
 cout<<"链表结束"<<endl;
}
 void list::insert(peo *i)
{ 
 peo* node;
 if(head==0)
 {
  head=i;
  head->next=0;
 }
 else
 {
  node=head;
  while(node->next)
   node=node->next;
  node->next=i;
  i->next=0;
 }
}
 void list::del(const char* s)
{
 peo* node1,*node2;	
 int flag=0;
 node1=head;
 if(strcmp(head->name,s)==0)
 {
  head=head->next;
  node1->~peo();
  flag=1;
 }
 else
 {
  while(node1)
   if(strcmp(node1->name,s)==0)
   {
    node2->next=node1->next;
    node1->~peo();
    flag=1;
    break;
   }
   else
   {
    node2=node1;
    node1=node1->next;
   }
 }
 if(!flag)
  cout<<"未找到要删除的结点！"<<endl;
 else
  cout<<"结点被删除，其姓名是："<<s<<endl;
}
 void list::ser(const char* s)
{
 peo* node=head;
 int flag=0;
 while(node)
 {
  if(strcmp(node->name,s)==0)
  {
   flag=1;
   break;
  }
  else
   node=node->next;
 }
 if(flag)
  cout<<"查找成功！"<<endl;
 else
  cout<<"未找到该结点！"<<endl;
}
 void list::display(void)
{
 peo* node;
 if(head==0)
  cout<<"空链表！"<<endl;
 else
 { 
  node=head;
  while(node)
  {
   node->display();
   node=node->next;
  }
 }
}