关闭库键事件监听不起作用

Question

我尝试了以下代码，使用google closure-library监听关键事件，但代码不起作用。

goog.require('goog.events.EventHandler');
goog.require('goog.events.EventType');
goog.require('goog.dom');
goog.require('goog.editor.Command');
goog.require('goog.editor.Field');
goog.require('goog.editor.Field.EventType');

-----------------------below--not worked------------------------------------------

var myField = new goog.editor.Field('editMe');

goog.events.listen(myField, goog.events.EventType.KEYPRESS,
         function(){alert('12')});

Answer 1

你必须在相关的DOM元素上听取事件：

goog.events.listen(myField.getElement(), goog.events.EventType.KEYPRESS, function(){alert('12')});