內(nèi)蒙古科技大學(xué)面向?qū)ο蟮某绦蛟O(shè)計(jì)實(shí)驗(yàn)8繼承(一)-資料下載頁(yè)
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【正文】 ①()。}*/練習(xí)（三）include include class CPoint{private:float x,y。public:CPoint(float x1,float y1):x(x1),y(y1){coutCPoint基類(lèi)構(gòu)造函數(shù)已調(diào)用endl。}void display(){coutx= CPoint::x y= CPoint::yendl。}}。class CLine:public CPoint{private:double k。double l。public:CLine(float x1,float y1):CPoint(x1,y1){coutCLine派生類(lèi)構(gòu)造函數(shù)已調(diào)用endl。float x2,y2。coutPlease input x2,y2:endl。cinx2y2。l=sqrt((x1x2)*(x1x2)+(y2y1)*(y2y1))。coutl:lendl。if(y2y1!=0){k=(y2y1)/(x2x1)。coutk= kendl。}elsecout分母為0,k不存在endl。 }}。class CCircle:public CPoint{private:double r。public:CCircle(float x1,float y1):CPoint(x1,y1){coutCCircle派生類(lèi)構(gòu)造函數(shù)已調(diào)用endl。coutplease input r:endl。cinr。coutS= *r*rendl。}}。void main(){float x1,y1。coutPlease input x1,y1:endl。cinx1y1。CPoint CP(x1,y1)。()。CLine CL(x1,y1)。CCircle CC(x1,y1)。}六、參考文獻(xiàn)參考的資料：C++面向?qū)ο蟪绦蛟O(shè)計(jì)
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