'宣言 Public Class CaptchaBot Inherits Infragistics.Web.UI.Framework.RunBot Implements Infragistics.Web.UI.IClientState, Infragistics.Web.UI.IObjectBase, Infragistics.Web.UI.IProvideAppStyling, Infragistics.Web.UI.ITemplatedObject, Infragistics.Web.UI.IUIObject