Flex中的CSS： （4）内部样式和内联样式最终被编译的AS源文件不

看例子。

这些区别有助于我们归纳编译器对不同形式CSS的编译规则。

内部样式：

<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
			   xmlns:s="library://ns.adobe.com/flex/spark"
			   xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600">
	<fx:Style>
		@namespace s "library://ns.adobe.com/flex/spark";
		@namespace mx "library://ns.adobe.com/flex/mx";
		
		s|Button{
			color:"16711935"
		}
	</fx:Style>
	<s:VGroup>
		<s:Button label="button"/>
	</s:VGroup>
</s:Application>

内联样式：

<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
			   xmlns:s="library://ns.adobe.com/flex/spark"
			   xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600">
	<s:VGroup>
		<s:Button label="button" color="16711935"/>
	</s:VGroup>
</s:Application>

内部样式被编译后的AS代码：

    mx_internal function _test1_StylesInit():void
    {
        //  only add our style defs to the style manager once
        if (mx_internal::_test1_StylesInit_done)
            return;
        else
            mx_internal::_test1_StylesInit_done = true;
            
        var style:CSSStyleDeclaration;
        var effects:Array;
                    

        var conditions:Array;
        var condition:CSSCondition;
        var selector:CSSSelector;
        selector = null;
        conditions = null;
        conditions = null;
        selector = new CSSSelector("spark.components.Button",conditions,selector);
        // spark.components.Button
        style = styleManager.getStyleDeclaration("spark.components.Button");
        if (!style)
        {
            style = new CSSStyleDeclaration(selector,styleManager);
        }

        if (style.factory == null)
        {
            style.factory = function():void
            {
                this.color = "16711935";
            };
        }

内联样式被编译后的AS代码：

private function _test1_Button1_c() : spark.components.Button
{
	var temp : spark.components.Button = new spark.components.Button();
	temp.label = "button";
	temp.setStyle("color",16711935);
	if (!temp.document) temp.document = this;
	return temp;
}