virt_hie.cpp
来源：互联网 发布：ue4和unity3d 编辑：程序博客网 时间：2024/06/17 13:14
<iframe name="google_ads_frame" marginwidth="0" marginheight="0" src="http://pagead2.googlesyndication.com/pagead/ads?client=ca-pub-5572165936844014&dt=1194442938015&lmt=1194190197&format=336x280_as&output=html&correlator=1194442937843&url=file%3A%2F%2F%2FC%3A%2FDocuments%2520and%2520Settings%2Flhh1%2F%E6%A1%8C%E9%9D%A2%2FCLanguage.htm&color_bg=FFFFFF&color_text=000000&color_link=000000&color_url=FFFFFF&color_border=FFFFFF&ad_type=text&ga_vid=583001034.1194442938&ga_sid=1194442938&ga_hid=1942779085&flash=9&u_h=768&u_w=1024&u_ah=740&u_aw=1024&u_cd=32&u_tz=480&u_java=true" frameborder="0" width="336" scrolling="no" height="280" allowtransparency="allowtransparency"></iframe> #include <iostream.h>
class base
{
public:
virtual void vfunc(void)
{
cout << "This is base's vfunc()." << endl;
}
};
class derived1 : public base
{
public:
void vfunc(void)
{
cout << "This is derived1's vfunc()." << endl;
}
};
class derived2 : public derived1 { };
void main(void)
{
base *p, b;
derived1 d1;
derived2 d2;
p = &b; // Point to base class
p->vfunc();
p = &d1; // Point to first derived class
p->vfunc();
p = &d2; // Point to second derived class
p->vfunc(); // However, uses derived1's vfunc function
}
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