<!DOCTYPE html>
<html>
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js">
</script>
<script>
$(document).ready(function(){
$("#disable").click(function(){
jQuery.fx.off = true;
});
$("#enable").click(function(){
jQuery.fx.off = false;
});
$("#toggle").click(function(){
$("div").toggle("slow");
});
});
</script>
</head>
<body>
<button id="disable">jQuery.fx.off = true ( 禁用 )</button>
<button id="enable">jQuery.fx.off = false ( 启用 )</button>
<br><br>
<button id="toggle">切换动画</button>
<div style="background:#98bf21;height:100px;width:100px;margin:50px;">
</div>
</body>
</html>