C++中static_cast和dynamic_cast强制类型转换

#include <iostream>
using namespace std;


class Base{

    int a;
public:
    void baseMethod(){
        cout << "Base method" << endl;
    };
};

class ChildClass: public Base{
    int b;
public:
    void childMethod(){
        cout << "child method" << endl;
    };
};

int main(){

    /* 上行转换 */
    ChildClass child;
    Base b = static_cast<Base>(child);
    b.baseMethod();
    
    /* 下行转换 */
    Base bb;
    ChildClass cc = static_cast<ChildClass>(bb);
    
}