flex反射

1.

package
{
	import flash.display.Sprite;
	import flash.utils.getDefinitionByName;
	
	public class asproject extends Sprite
	{
		public function asproject()
		{
			testReflect();
		}

		public function helloWorld():void
		{
			trace("MyClass.HelloWorld is called. msg");
		}

		public function testReflect():void
		{
			var tesClass:Class = getDefinitionByName("MyClass") as Class;
			var myClassInstance:MyClass = new tesClass() as MyClass;
			myClassInstance.sayHello("www");
			
		}
	}
}	

 2.

package
{
	public class MyClass
	{
		public function MyClass()
		{
		}
		
		public function sayHello(name:String){
			trace("hello:" +name);
		}
	}
}