下面这个程序的结果是 #include<iostream.h> class A { private: int a; public: void seta();int geta();}; void A∷seta() {a=1;} int A∷geta() {return a;} class B { pnvate: int a; publiC: void sera();int geta();}; void B∷seta() {a = 2;} int B∷geta() {return a;} class C:public A,public B { private: int b; public: void display();}; void C∷display() { int b=geta(); cout<<b;} void main() { C c; c.seta(); c.display();}