例84(构造函数的调用 /EXAMPLE3 13.H # include≤ iostream. h> class a public AO cout<<AO is called"<<endl A(int x, int y); private: int a. b: A: A(int x, int y) b-y; cout<<"A(int x, int y) is called"<<endl; cout<<"A="<<a<<'t<<B="<<b<<endl//EXAMPLE3_13.H #include<iostream.h> class A { public: A() { cout<<″A() is called″<<endl; } A(int x,int y); private: int a,b; }; A::A(int x,int y) { a=x; b=y; cout<<″A(int x,int y) is called″<<endl; cout<<″A=″<<a<<′＼t′<<″B=″<<b<<endl; } 例 8-4 构造函数的调用