验证运行时类型识别例子

本人写的例子

#include <iostream>
#include <typeinfo.h>

class Base {
public:
 virtual void vvfunc() {}
};

class Derived : public Base {};

using namespace std;
int main() {
 Derived* pd = new Derived;
 Base* pb = pd;
 cout << typeid( pb ).name() << endl;   //prints "class Base *"
 cout << typeid( *pb ).name() << endl;   //prints "class Derived"
 cout << typeid( pd ).name() << endl;   //prints "class Derived *"
 cout << typeid( *pd ).name() << endl;   //prints "class Derived"
 delete pd;
}