jQuery API | jQuery API 中英文对照版 - jQuery在线查询手册 |
focus |
focus()
触发每一个匹配元素的focus事件。这个函数会调用执行绑定到focus事件的所有函数。 注意:这个函数不会调用相应元素的focus方法!如果需要通过代码来使一个元素获得焦点,必须使用DOM方法,例如:$("#myinput")[0].focus(); 返回值:jQuery 示例: $("p").focus(); HTML 代码: <p onfocus="alert('Hello');">Hello</p> 结果: alert('Hello'); Trigger the focus event of each matched element. This causes all of the functions that have been bound to thet focus event to be executed. Note: This does not execute the focus method of the underlying elements! If you need to focus an element via code, you have to use the DOM method, eg. $("#myinput")[0].focus(); Return value: jQuery $("p").focus();Before: <p onfocus="alert('Hello');">Hello</p>Result: alert('Hello');
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