double distance(point a,point b){} 这种写法对吗?参数是俩个对象前加类名

定义一个Point类并用成员函数 double Distance(const& Point)求两点间距离 class Point{ private double x; private double y; Point(doubl point friend Point operator +(const Point& a,const Point& b); 我是新手 A point of price for a point of goods.有这种表达么? java问题..谢谢lass Point { double x,y,z; Point(double _x,double class Point{ public double x,y; Point(double x,double y){ th Point::Point(Point & 英语翻译typedef std::vector< POINT > B;double Perimeter(B b){.UI 类定义为什么要这样class point{public:double x,y;point(){};point(doubl if the distance between a point soutce of light and a surfac 英语翻译一句话：the distance from the two foci to a point on the ell