在Delphi中，专门定义了一组对象和部件用以绘制图形，完成一些简单的图像功能。利用这些对象、部件的方法，可以方便地绘制各种常用图形。-In Delphi, specifically defines a set of objects and components used to draw shapes, some simple image features. Use of these objects, components, methods, and can easily draw a var