事件，託管

這4種有什麼不一樣嗎？

StoryBoard.Completed += new EventHandler(Storyboard_Completed);

StoryBoard.Completed += delegate
{
	// do something
}；

opacityanimate.Completed += (sender, args) =>
{
}；

 animate.Completed += delegate(object sender, EventArgs args){
};