代码：jquery自定义插件 demo

<script type="text/javascript" src="http://cdn.bootcss.com/jquery/1.11.2/jquery.min.js"></script>
<script type="text/javascript">
$(function(){
$.fn.portamento = function(options) {
var opts = $.extend({}, $.fn.portamento.defaults, options);
var panel = this;
var gap = opts.gap;
var aaaaaa = opts.aaaaaa;
console.log(aaaaaa);
console.log(gap);
};
$.fn.portamento.defaults = {
'wrapper'                : $('body'),
'gap'                    : 10,
'disableWorkaround'     : false
};
$("#div1").portamento({aaaaaa: "a1a1a1a1",gap:"MMMMMMMMMMM"});
});
</script>
<style type="text/css">
#div1{border:1px solid #f00;}
</style>
<div id="div1">sdsdsdsdsdsdsdsdsdsdsdsdsd</div>