多重继承

多重继承与多层继承不同，通俗点讲就是有多个爹妈的意思，现实中的比如三国时期的吕布，史称"三姓家奴"

#include <iostream>

//幕爸
class MFather{
protected:
    int handsome;//英俊潇洒程度
};
//幕妈
class MMother{
protected:
    int goodness;//勤劳善良程度
};

//小小幕
class Mchild:public MFather,public MMother{
protected:
    int imp;//淘气
};

int main(int argc, const char * argv[]) {
    std::cout<<sizeof(MFather)<<std::endl; //4
    std::cout<<sizeof(MMother)<<std::endl; //8 =4 +4
    std::cout<<sizeof(Mchild)<<std::endl; //12 =4+4+4
    return 0;
}