【单选题】有如下程序: #include using namespace std; class Pair{ int m,n; public: Pair(int j,int k):m(j),n(k){} int get{return m;} int getconst{return m+n;} }; int main{ Pair a(3,5); const Pair b(3,5); tout$amp;
【单选题】有如下程序: #include using namespace std; class AA{ int k: protected: int n; void setK(int k){mis->k=k;}. public: void setN(int n){tllis->n=n;} }; class BB:public AA{/*类体略*/}; int main(){ BB X; x.n=l: //1 ...