​x
 
<!DOCTYPE html>
<html>
<head>
<script src="/jquery/jquery-1.11.1.min.js">
</script>
<script>
$(document).ready(function(){
  $("#toggle").on("click",function(){
    $("div").toggle(5000);
  });
  $("#interval").on("click",function(){
    jQuery.fx.interval = 500;
  });
});
</script>
</head>
<body>
​
<button id="toggle">切换 div</button>
<button id="interval">以较少的帧数来运行动画</button>
​
<div style="background:#98bf21;height:100px;width:100px;margin:50px;">
</div>
​
</body>
</html>
​