C# 做LED效果，使用C#语言环境制作的LED显示屏效果，根据srcBitmap绘制desBitmap，获取源图的bmdata。定义时钟事件，设置文字样式等。-C# to do the LED effect, use the C# language environment produced by the LED display effect, according to srcBitmap to draw desBitmap access to the source map bmdata. De