Flex代码实现汇总：实现倒角功能

实现倒角功能 功能实现：--边框外缘，Canvas WIDTH,HEIGHT 边框遮照，WIDTH-1,HEIGHT-1, borderStyle="solid" cornerRadius="20"
示例：<mx:Canvas xmlns:mx="http://www.adobe.com/2006/mxml" width="100" height="100"><mx:Canvas id="i" width="99" height="99" borderStyle="solid" cornerRadius="20"/><mx:Canvas width="99" height="99" mask="{i}"><mx:Image id="image" width="84" height="85" source="{data.path}" horizontalCenter="0" verticalCenter="0" buttonMode="true" ioError="mx.controls.Alert.show(event.toString())" /><mx:Canvas width="99" height="99" backgroundImage="{thumbImgBorderClass}" /></mx:Canvas> <mx:Script><![CDATA[[Bindable][Embed(source="assets/bg/thumbImgBorder.png")]private var thumbImgBorderClass:Class;]]></mx:Script></mx:Canvas>