一张图片无限放大缩小效果
<img src="img/putao.png" width="100px" height="80px">
<script type="text/javascript" src="js/jquery-1.10.2.min.js"></script> <script type="text/javascript"> $(function() { setInterval(function(){ $('img').each(function() { var wValue = 1.5 * $(this).width(); var hValue = 1.5 * $(this).height(); $(this).animate({ width: wValue, height: hValue, left: ("-" + (0.5 * $(this).width()) / 2), top: ("-" + (0.5 * $(this).height()) / 2) }, 1000); }).each(function() { $(this).animate({ width: "100", height: "80", left: "0px", top: "0px" }, 1000); }); },2000); }); </script>