circtor.cpp

来自「本课程主要介绍面向对象程序设计的方法和c++语言的基本概念。以c++语言中的面向」· C++ 代码 · 共 40 行

// circtor.cpp
// circles use constructor for initialization
#include "msoftcon.h"         // for graphics functions
////////////////////////////////////////////////////////////////
class circle                  //graphics circle
   {
   protected:
      int xCo, yCo;           //coordinates of center
      int radius;             
      color fillcolor;        //color
      fstyle fillstyle;       //fill pattern
   public:
                              //constructor
      circle(int x, int y, int r, color fc, fstyle fs) :
         xCo(x), yCo(y), radius(r), fillcolor(fc), fillstyle(fs)
         {  }

      void draw()             //draws the circle                          
         {
         set_color(fillcolor);              //set color
         set_fill_style(fillstyle);         //set fill
         draw_circle(xCo, yCo, radius);     //draw solid circle            
         }
   };
////////////////////////////////////////////////////////////////
int main()
   {
   init_graphics();           //initialize graphics system
                              //create circles
   circle c1(15, 7, 5, cBLUE, X_FILL);                 
   circle c2(41, 12, 7, cRED, O_FILL); 
   circle c3(65, 18, 4, cGREEN, MEDIUM_FILL);

   c1.draw();                 //draw circles
   c2.draw();
   c3.draw();
   set_cursor_pos(1, 25);     //lower left corner
   return 0;
   }