适合新手。控件是Windows 图形用户界面的主要组成部分之一，用户通过操作控件对象完成与应用程序之间的交互。控件的使用集中体现了Windows 系统面向对象的特点-Suitable for novices. Control is one of the major components of the Windows graphical user interface, user interaction with the application control subjects completed between. Use controls epitomizes the object-oriented features of Windows systems