C++实现类与类之间的转换

马斯塔

于 2020-11-20 19:49:14 发布

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文章标签： c++

本文链接：https://blog.youkuaiyun.com/qq_43036419/article/details/109862581

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本文通过一个具体的C++代码示例介绍了类之间的友元关系及如何从学生类继承到教师类的过程。示例中定义了学生类(student)和教师类(teACHER)，并展示了如何在类中声明友元及通过继承复用代码。

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class teahcer;
class student {
public:
	friend class teacher;
	student(int id, string name, string sex);
private:
	int id;
	string name;
	string sex;
	float score;
};

student::student(int id, string name, string sex)
{
	this->id = id;
	this->name = name;
	this->sex = sex;
}

class teacher {
private:
	int id;
	string name;
	string sex;
public:
	teacher(const student&S);
	void disp();
};
void teacher::disp()
{
	cout << "id:" << id << endl;
	cout << "name:" << name << endl;
	cout << "sex:" << sex << endl;
}

teacher::teacher(const student&S)
{
	id = S.id;
	name = S.name;
	sex = S.sex;
}

int main()
{
	student S(1, "qw", "boy");
	teacher T(S);
	T.disp();
	system("pause");
}