该程序在视图动态绘制多种2D图形，如柱状图，饼图，线图等。内含源代码及示例程序-Dynamic view of the program draw a variety of 2D graphics, such as histograms, pie charts, line diagrams. Contains the source code and sample programs

可以动态绘制多种柱状图，简单小巧，代码逻辑清晰(Can dynamically draw a variety of histogram, simple and compact, code logic clear)