5.19 设计一个虚基类

最新推荐文章于 2023-03-24 20:55:19 发布

原创最新推荐文章于 2023-03-24 20:55:19 发布 · 516 阅读

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本文通过一个C++程序实例介绍了多重继承与虚拟基类的使用方式。该示例定义了`base`类作为基础，`leader`和`engineer`类作为派生类，并进一步创建了一个同时继承自`leader`和`engineer`的`chairman`类。通过这种方式展示了如何在C++中避免钻石问题并实现成员变量和方法的正确调用。

#include <iostream>
#include <string>
using namespace std;
class base{
private:
	string name;
	int old;
public:
	base(string name1,int old1)
	{
		name=name1;
		old=old1;
	}
	void print()
	{
		cout<<"姓名为："<<name<<endl;
		cout<<"年龄为："<<old<<endl;
	}
};
class leader:virtual public base{
public:
	string position;
	string department;
public:
	leader(string name1,int old1,string position1,string department1):base(name1,old1)
	{
		position=position1;
		department=department1;
	/*}
	void print()
	{*/
		base::print();
		cout<<"职务为："<<position<<endl;
		cout<<"部门为："<<department<<endl;
	}
};
class engineer:virtual public base{
private:
	string job_name;
	string major;
public:
	engineer(string name1,int old1,string job_name1,string major1):base(name1,old1)
	{
		job_name=job_name1;
		major=major1;
	/*}
	void print()
	{
		base::print();*/
		cout<<"职称为："<<job_name<<endl;
		cout<<"专业为："<<major<<endl;
	}
};
class chairman:public leader,public engineer{
public:
	chairman(string name1,int old1,string position1,string department1,string job_name1,string major1):base(name1,old1),leader(name1,old1,position1,department1),engineer(name1,old1,job_name1,major1)
	{ 
		
		//print();
	}
	/*void print()
	{
		base::print();
		leader::print();
		engineer::print();
	}*/
};
int main()
{
	cout<<"chairman的信息为："<<endl;
	chairman C("zhang",25,"director","engineer department","director chairman","engineer science");
	return 0;
}