第6周任务3

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#include<iostream>#include"cmath"using namespace std; enum SymmetricStyle {axisx, axisy, point};//分别表示按x轴, y轴, 原点对称class CPoint{private:double x; // 横坐标    double y; // 纵坐标public:CPoint(double xx = 0,double yy = 0) : x(xx), y(yy){};    void Distance(CPoint p) const; // 两点之间的距离(一点是当前点，另一点为参数p)    void Distance0() const;       // 到原点的距离    CPoint SymmetricAxis(SymmetricStyle style) const; // 返回对称点    void input(); //以x,y 形式输入坐标点    void output(); //以(x,y) 形式输出坐标点};void CPoint :: Distance(CPoint p) const      // 两点之间的距离(一点是当前点，另一点为参数p){double d;d = sqrt((p.x - x) * (p.x - x) + (p.y - y) * (p.y - y));cout << "两点之间的距离:" << d << endl;}void CPoint :: Distance0() const      // 到原点的距离{double d;d = sqrt((x - 0) * (x - 0) + (y - 0) * (y - 0));cout << "到原点的距离:" << d << endl;}CPoint CPoint::SymmetricAxis(SymmetricStyle style) const   // 返回对称点{switch(style){case axisx:  cout << "(" << x << "," << -y << ")" << endl ; break;case axisy: cout << "(" << -x << "," << y << ")" << endl; break;case point:cout << "(" << -x << "," << -y << ")" << endl; break;}return(x,y);}void CPoint :: input() //以x,y 形式输入坐标点{char c1, c2, c3;cout << "请输入坐标（形式 (x,y)）";do{cin >> c1 >> x >> c2 >> y >> c3;if(c1 != '(' || c2 != ',' || c3 != ')')cout << "请重新输入（形式 x,y）";else break;}while(1);}void CPoint :: output() //以(x,y) 形式输出坐标点{cout << "(" << x << "," << y << ")" << endl;}int main(){CPoint c1, c2;c1.input();cout << "请再输入一个点" << endl;c2.input();c1.Distance(c2);c1.Distance0();c1.SymmetricAxis(axisx);c1.SymmetricAxis(axisy);c1.SymmetricAxis(point);return 0;}