RTRT

class shape{

public:
  void Print() { cout <<"I'm shape .\n";}
  void draw(){cout <<"I'm drawing .\n";}
  void move(){cout <<"I'm moving .\n";}
  void hide(){cout <<"I'm hiding .\n";}
  void show(){cout <<"I'm showing .\n";}
};




class Quadrangle : public shape
{
public:
  void Print() { cout << "I'm Quadrangle\n"; }
}


class Diamond : public Quadrangle
{
public:
  void Print() { cout << "I'm Diamond.Diamond is Quadrangle\n"; }

};

diamond怎么调用爷爷的DRAW等方法?

貌似直接draw()就行

另外试一试shape::draw()

主函数像这样
void main()
{
  Diamond s;
  s.Print();
}

Quote:

引用第2楼X于2006-12-10 15:41发表的:
主函数像这样
void main()
{
  Diamond s;
  s.Print();
.......

试一试s.draw();

不行

可以了

...继承错了,再研究下,似乎还没完全解决

爷爷的什么方法?
什么访问修饰符?

class Square : public Quadrangle,public Diamond

可以这样继承吗?

class Quadrangle : public shape
{
public:
void Print() { cout << "I'm Quadrangle\n"; }
}

后面加一个分号

Quote:

引用第8楼iguard于2006-12-10 16:02发表的:
class Quadrangle : public shape
{
public:
void Print() { cout << "I'm Quadranglen"; }
}
.......

7楼的问题~

差不多了,实验可以搞定了,谢谢大家哈

#include "stdio.h"
#include "iostream.h"

class shape
{
public:
void Print(){ cout <<"I'm shape .\n";}
void draw(){cout <<"I'm drawing .\n";}
void move(){cout <<"I'm moving .\n";}
void hide(){cout <<"I'm hiding .\n";}
void show(){cout <<"I'm showing .\n";}
};

class Quadrangle : public shape
{
public:
void Print(){ cout << "I'm Quadrangle\n"; }
};

class Diamond : public Quadrangle
{
public:
void Print(){ cout << "I'm Diamond.Diamond is Quadrangle\n"; }
};

int main()
{
Diamond d;
d.draw();
return 0;
}

通过

看7楼~

VC++里面的画图头文件是<GRAPHICS.H>吗？
怎么不可以用呢？

7楼继承好像真的不行

明白楼住的意思了
#include "stdio.h"
#include "iostream.h"

class shape

class Quadrangle : public shape

class Diamond : public Quadrangle

调用Diamond的爷爷的方法 就是说掉用 shape::print()方法!
这个 调用就是啥子意义都没有啊!!!!!!
不知道要调用shape::print()有什么意义!!!!!

估计楼住原来是说怎么调用 Diamond:print()方法吧?

使用virtual 就可以了哈