题型:填空题 下列程序的运行结果是______。 #include<iostream.h> class Base public: void f(int x)cout<<"Base:"<<x<<endl; ; class Derived:public Base public: void f(char *str)cout<<"Derived:"<<str<<endl; ; void main(void) Base *pd=new Base; pd=new Derived; pd->f(’a’); 查看答案