CurtButton按钮控件1-拥有多种显示风格，可用于按钮，工具拦，标签等，用途广泛；2-提供完美的事件过程，例如MouseDown和MouseLeave，极大方便编程；3-显示效果生动活泼，外观控制简单灵活。-CurtButton button controls 1- a variety show style, can be used for buttons, tool bar, labels and so on, a wide range of uses　2- provide the perfect course of the incident, such as MouseDown and MouseLeave, greatly facilitate programming　3- shows the effect of a lively and the appearance of simple and flexible control.