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circle_inher.cpp
资源名称:c.rar [点击查看]
上传用户:puke2000
上传日期:2022-07-25
资源大小:912k
文件大小:1k
源码类别:
C#编程
开发平台:
Visual C++
- //=====================================
- // circle_inher.cpp
- //=====================================
- #include"point.h"
- #include"circle_inher.h"
- //-------------------------------------
- Circle::Circle(const Point& p, double r):Point(p),radius(r){}
- double Circle::getRadius()const{ return radius; }
- Point Circle::getPoint()const{return *static_cast<const Point*>(this);}
- double Circle::getArea()const{ return radius * radius * Point::PI; }
- double Circle::getCircum()const{ return 2 * radius * Point::PI; }
- void Circle::moveTo(double a, double b){ x = a, y = b; }
- void Circle::modifyRadius(double r){ radius = r; }