会用继承,会用一些模板,

但是模板的继承是什么鬼;

百度如下:

模板类的继承包括四种:

1.(普通类继承模板类)


template<class T>
class TBase{
T data;
……
};
class Derived:public TBase<int>{
……
};

2.(模板类继承了普通类(非常常见))


class TBase{
……
};
template
<class T>
class TDerived:public TBase{
T data;
……
};

3.(类模板继承类模板)


template<class T>
class TBase{
T data1;
……
};
template
<class T1,class T2>
class TDerived:public TBase{
T2 data2;
……
};

4.(模板类继承类模板,即继承模板参数给出的基类)


#include
using namespace std;

class BaseA{
public:
BaseA(){cout
<<BaseA founed<<endl;}
};
class BaseB{
public:
BaseB(){cout
<<BaseB founed<<endl;}
};
template
<typename T, int rows>
class BaseC{
private:
T data;
public:
BaseC():data(rows){
cout
<<BaseC founed << data << endl;}
};
template
<class T>
class Derived:public T{
public:
Derived():T(){cout
<<Derived founed<<endl;}
};

void main()
{
Derived
x;// BaseA作为基类
Derived y;// BaseB作为基类
Derived<BaseC<int, 3> > z; // BaseC作为基类
}