使用vc双缓冲绘图，避免闪烁，在别处看到的，感觉很不错，发出来与大家共享。-vc-use graphics buffer to avoid flicker, see elsewhere, I feel very good, and sent share.

双缓冲绘图 VC 初学者和一般爱好者可以看看，我看了之后觉得好，就发上来了-double buffering graphics VC beginners and general lovers can see, I feel that after a good read on the line with the