js实现loading效果 spin.js

<script type="text/javascript" src="jquery-1.8.1.min.js"></script> <script type="text/javascript" src="spin.js"></script> <script type="text/javascript" src="jquery.spin.js"></script> <script type="text/javascript" > $(function(){ $("#rotateG_01").spin('large', 'black'); }); </script> <div id="floatingBarsG"> <div class="blockG" id="rotateG_01"> </div>