C++获取基类指针所指子类对象的类名

我们在程序中定义了一个基类，该基类有n个子类，为了方便，我们经常定义一个基类的指针数组，数组中的每一项指向都指向一个子类，那么在程序中我们如何判断这些基类指针是指向哪个子类呢？

关键字

typeid，有关此关键字的详细内容请自行百度。

代码：

#include <iostream>
#include <string>
#include <typeinfo>
using namespace std;

class father
{
public:
    virtual void fun()
    {
        cout<<"this is father fun call
";
    }
    virtual int id()
    {
        return 0;
    }
};

class son1: public father
{
public:

    void fun()
    {
        cout<<"this is the son1 fun call
";
    }

    int id()
    {
        return 1;
    }

};

class son2: public father
{
public:

    void fun()
    {
        cout<<"this is the son2 fun call
";
    }

    int id()
    {
        return 2;
    }
};

int main()
{
    father * pf;
    son1 s1;
    son2 s2;
    pf = &s1;
    cout << typeid(*pf).name() <<endl;
    string temp(typeid(*pf).name());
    if(temp == "class son1")
    {
        cout<<"this is son1
";
    }
    else if(temp == "class son2")
    {
        cout<<"this is son2
";
    }

    pf = &s2;
    cout << typeid(*pf).name() <<endl;
    string temp1(typeid(*pf).name());
    if(temp1 == "class son1")
    {
        cout<<"this is son1
";
    }
    else if(temp1 == "class son2")
    {
        cout<<"this is son2
";
    }
    return 0;
}