#include <iostream.h>
#include <string.h>
class StudentID{
public:
StudentID(int id=0 )
{
value=id;
cout <<"Assigning student id " <<value <<endl;
}
~StudentID()
{
cout <<"Destructing id " <<value <<endl;
}
protected:
int value;
};
class Student{
public:
Student(char* pName="no name",int ssID=0):id(ssID)
{
cout <<"Constructing student " <<pName <<endl;
strncpy(name,pName,sizeof(name));
name[sizeof(name)-1]='\n';
}
protected:
char name[20];
StudentID id;
};
void main()
{
Student s("Mary",2001);
Student t("John");
}
程序运行的结果为：
