若有以下程序: #include<iostream> using namespaces std; class A { public: A(){} A(int i) { xl=i; } void dispa() { cout<<"x1="<<x1<<","; } private: int x1; }; class B:public A { public: B(){} B(int i):A(i+10) { x2=i; } void dispb() { dispa(); cout<<"x2="<<x2<<endl; } private: int x2; }; int main{) { B b(2); b.dispb(): return 0; } 程序运行后的输出结果是
免费的网站请分享给朋友吧