今天看到一个小例子,发现了一个小trick。见代码: #include <cstdio> #include <cstdlib> class base_1 { public: int a; }; class base_2 { public: int b; }; class base_3: public base_1, public base_2 { public: int c; }; int main(int argc, char* argv[]) { printf("&base_1::a = %p\n", &base_1::a); printf("&base_2::b = %p\n", &base_2::b); printf("&base_3::a