#include <iostream>

using namespace std;

class Father {
public:
	int type = 0;
};
class SonA : public Father {
public:
	void Foo() {
		cout << "Message from sonA\n";
	}
	SonA() {
		type = 1;
	}
};
class SonB : public Father {
public:
	void Bar() {
	}
	SonB() {
		type = 2;
	}
};

Father *fa = new SonA();

int main() {
	if (fa->type == 1) {
		fa->Foo();    //
	} else if (fa->type == 2) {
		fa->Bar();    //
	}
}

大致目的是讨论参数的类型然后分别处理，这段代码会报两个错，请问有其他方法实现吗