获取每个元素的属性，然后重新设置元素的最后一部分

Get the attribute of each element and then setting back the last part of it

    $(".item").attr("path",function(){         
       return $(this).attr("path").split("/").pop();        
    })
    console.log($('body').html());

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="item" path="asaa/basba/asbsaa"></div>
<div class="item" path="bsbab/gbfssv/vsaava"></div>
<div class="item" path="asbaba/bsaba/dfsavava"></div>