jQuery的习惯是将这个设置为当时所方便的
一个方法是
一个非常讨厌的模式,在我看来,幸运的是,你永远不用依赖它:
onClick: function(e) {
this; // Still the view instance (as it should be).
e.target; // The element that was clicked.
e.currentTarget; // The element that was bound by the click event.
}
…可以根据需要使用event对象的target或currentTarget。