2.cpp

一、教学目的： 要求掌握C++对内存的管理方法

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

class Student
{
public:
      Student(char*pName="no name")
	  {
		  cout<<"Constructing new student "<<pName<<endl;
		  strcpy(name,pName);
		  name[sizeof(name)-1]='\0';
	  }
	  Student(Student& s)
	  {
		  cout<<"Constructing copy of "<<s.name<<endl;
		  strcpy(name,"copy of ");
		  strcat(name,s.name);
	  }
	  ~Student()
	  {
		  cout<<"Destructing "<<name<<endl;
	  }
protected:
	char name[40];
};
class Tutor
{
public:
	Tutor(Student& s):student(s)
	{
		cout<<"Constructing tutor\n";
	}
protected:
	Student student;
};
void fn(Tutor tutor)
{
	cout<<"In function fn()\n";
}
void main()
{
	Student randy("Randy");
	Tutor tutor(randy);
	cout<<"Calling fn() \n";
	fn(tutor);
	cout<<"Returned from fn()\n";
}