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指令“Circle(1000,1000),500,,-6,-3”将绘制()。
- A、画圆
- B、椭圆
- C、扇形
- D、圆弧
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更多 “指令“Circle(1000,1000),500,,-6,-3”将绘制()。A、画圆B、椭圆C、扇形D、圆弧” 相关考题
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使用VC6打开考生文件夹下的工程test7_3,此工程包含一个源程序文件test7_3.cpp,其中含有一个类Circle的定义,但该类的定义并不完整。请按要求完成下列操作,将类Circle的定义补充完整。(1)为类Circle增加一个构造函数,该函数有一个参数,并在构造时将该参数值赋给成员radius。将该函数实现为一个非内联函数,并且使用参数列表的方式将类成员赋值。请在注释“//**1**”之后添加适当的语句。(2)为类Circle增加一个成员函数print(),使得可以输出有关圆的信息,比如下列程序Circle c;c.SetRadius(5);c.Print();将输出:The circle has radius of 5!请在注释“//**2**”之后添加适当的语句。(3)完成友元函数void CompareR(Circle *cl,Circle*c2)的定义,在屏幕中输出c1与c2比较radius大小结果,要求使用 if-else结构完成。请在注释“//**3**”之后添加适当的语句。输出结果如下;The circle has radus of 5!The circle has radius of 10!c1<c2注意:除在指定位置添加语句之外,请不要改动程序中的其他内容。源程序文件test7_3.cpp清单如下:include<iostream.h>class Circle{public:Circle():radius(5){}//**1**void SetRadius(int r) {radius=r; }int GetRadius() {return radius; }//**2**friend void CompareR(Circle *c1,Circle*C2);private:int radius;};void CompareR(Circle *c1,Circle *C2){//**3**cout<<"c1c2"<<endl;elseif((c1->GetRadius())==(c2->GetRadius()))cout<<"c1=c2"<<endl;elseif((c1->GetRadius())<(c2->GetRadius()))cout<<"c1<c2"<<endl;}void main(){Circle c1;c1.SetRadius(5);C1.Print();Circle c2(10);c2.Print();CompareR(c1,c2);}
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单选题指令“Circle(1000,1000),500,,-6,-3”将绘制()。A
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