问为Flex项目创建actionscript应用程序文件

EN

package
{   

import spark.components.Application;

    public class Test extends Application
    {       
        public function Test(){
            super();    
        }       
    }
}

TypeError: Error #1007: Instantiation attempted on a non-constructor.
at mx.preloaders::Preloader/initialize()[E:\dev\4.y\frameworks\projects\framework\src\mx\preloaders\Preloader.as:261]
at mx.managers::SystemManager/http://www.adobe.com/2006/flex/mx/internal::initialize()[E:\dev\4.y\frameworks\projects\framework\src\mx\managers\SystemManager.as:2097]
at mx.managers::SystemManager/initHandler()[E:\dev\4.y\frameworks\projects\framework\src\mx\managers\SystemManager.as:2582]