在下面程序中,括号里应填()。 include using namespace std; class A { public: void 在下面程序中，括号里应填( )。 #include ＜iostream＞ using namespace std; class A { public: void fun( ) { cout ＜＜ "Hello" ＜＜ endl; } }; class B:: public A { void fun( ) { ( ) //调用基类的函数fun( ) tout ＜＜ "HI" ＜＜ endl; } };A．fun()B．A. fun()C．A::fun()D．A-fun(
在下面程序中,括号里应填()。 include using namespace std; class A { public: void
在下面程序中，括号里应填( )。 #include ＜iostream＞ using namespace std; class A { public: void fun( ) { cout ＜＜ "Hello" ＜＜ endl; } }; class B:: public A { void fun( ) { ( ) //调用基类的函数fun( ) tout ＜＜ "HI" ＜＜ endl; } };
A．fun()
B．A. fun()
C．A::fun()
D．A->fun(
相关考题：
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阅读下列说明和C++代码，填写程序中的空（1）～（6），将解答写入答题纸的对应栏内。【说明】以下C++代码实现一个简单绘图工具，绘制不同形状以及不同颜色的图形。部分类及其关系如图6－1所示。【C++代码】#include?#include?using?namespace?std;class?DrawCircle?{??????//绘制圆形，抽象类? ? ? public: （1）；//定义参数为?int?radius,?int?x,?inty? ?virtual～DrawCircle()?{?}};class?RedCircle：public?DrawCircle?{????//绘制红色圆形? ? ? ? public: void?drawCircle(intradius,?int?x,?int?y)?{cout??drawCircle?=?drawCircle;? }? ?virtual～shape()?{?}? public:? ?virtual?void?draw()?=?0;};class?Circle：public?Shape?{????//圆形? ? private:? ? ?int?x,y,radius;? ? public:? Circle(int?x,inty,int?radius,DrawCircle?*drawCircle)? （3）? {? this->x?=?x;? ?this->y?=?y;? ? this->radius?=?radius; }? ? ? public:? void?draw(){? drawCircle?-> （4）; }};int?main(){Shape?*redCirclenew?Circle(100,100,10,????（5）????);//绘制红色圆形? Shape?*greenCircle＝new?Circle(100,100,10, （6）??);//绘制绿色圆形redCircle >draw();? ?greenCircle?->draw();? ?return?0;}