proj10_04.cpp

C++程序设计教程的全部源代码 包含与教程同步的PPT 方便学习

#include <iostream.h>
class Employee
{
	char * name;
};
class Manager : public Employee
{
	char * position;
};
void main()
{
	Employee * emp = new Employee();
	Manager * man = new Manager();
	emp = man;					//有效：每个经理都是雇员
	//Manager* man = &eml;		//错误：不是每个雇员都是经理
}