这个相对简单，只需要考虑类对象大小的累加和内存对齐

#include<iostream>
using namespace std;


class Base {
public:
	int ma;
	int mb;
	char mc;
};

class Derive :public Base
{
public:
	int md;
};

class Derive2 :public Derive
{
public:
	int me;
};

int main()
{

	return 0;
}