有以下程序 #include＜iostream＞ #include＜string＞ using namespace std； class base { private： charbaseName[10]； public： base() { strcpy(baseName, Base )； } virtual char*myName() return baseName; } char *className() { return baseName; } }; class Derived: public base { private: char derivedName[10]; public: Derived() { strcpy(derivedName, Derived ); } char *myName() { return derivedName; } char *className() { return derivedName; } }; void showPtr(base &p) { cout＜＜p.myName0＜＜ ＜＜p.className(); } int main() { base bb; Derived dd; showPtr(dD) ; retum 0; } 动行后的输出结果为
A．Derived Base
B．Base Base
C．Derived Derived
D．Base Derived