### 返回值:BooleanjQuery.fx.off
### *V1.3*概述
关闭页面上所有的动画。
把这个属性设置为true可以立即关闭所有动画(所有效果会立即执行完毕)。有些情况下可能需要这样，比如：
* 你在配置比较低的电脑上使用jQuery。
* 你的一些用户由于动画效果而遇到了 [可访问性问题](http://www.jdeegan.phlegethon.org/turn_off_animation.html)
当把这个属性设成false之后，可以重新开启所有动画。
### 示例
#### 描述:
执行一个禁用的动画
##### jQuery 代码:
~~~
jQuery.fx.off = true;
$("input").click(function(){
$("div").toggle("slow");
});
~~~
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