用csharp及gdi+实现双缓存画图，解决画图时闪屏，刷新慢的问题，是了解双缓存画图的好东西-Gdi+ with csharp and achieve double-buffer drawing, solving the splash screen when drawing, slow refresh problem is to understand the double buffer drawing a good thing

使用双缓存实现无闪烁画图，工业画图示例。-The use of double-buffering to achieve flicker-free drawing, industrial drawing sample.

1、图形元素绘制（线：绘制、移动，拉伸、清除等），双缓存。 2、进程：创建、停止、列表 3、普通控件使用。-1, graphics, drawing elements (lines: map, move, stretch, clear, etc.), double-buffering. 2, process: create, stop, list 3, the use of common control.