一个日期显示控件,能显示年,月,日的大小写,实时转换大小写,选择状态改变背景颜色。 -A date display controls can display year, month, day case-sensitive, real-time conversion, select the state to change the background color.

可以实现RGB至HSL空间的转换，保证色彩不容易失真-RGB to HSL space conversion can be achieved to ensure that the color is not easy distortion