如何查找任何对象使用的内存

class Help
{
public:
        Help();
        ~Help();

        typedef std::set<string> Terms;
        typedef std::map<string, std::pair<int,Terms> > TermMap;
        typedef std::multimap<int, string, greater<int> > TermsMap;

private:

        TermMap  terms;
        TermsMap    termsMap;
};
class Help
{
public:
        Help();
        ~H