节点的上移与下移

来源：互联网发布：windows xp虚拟机编辑：程序博客网时间：2024/06/11 20:46
<!DOCTYPE HTML><html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><title>无标题文档</title><script src="jquery-1.11.1.js"></script><script>$(function(){      $('input[value="上移"]').click(function(){               var $nowLi = $(this).closest('li'); //当前        var $prevLi = $nowLi.prev();      //上一个        if( $prevLi.length == 0 ){            alert('到头了');        }        else{            $nowLi.insertBefore( $prevLi );        }           });    $('input[value="下移"]').click(function(){           var $nowLi = $(this).closest('li');        var $nextLi = $nowLi.next();          if( $nextLi.length == 0 ){            alert('到尾了');        }        else{            $nowLi.insertAfter( $nextLi );        }           }); });</script></head><body><ul>    <li>1.<input type="button" value="上移" /><input type="button" value="下移" /></li>    <li>2.<input type="button" value="上移" /><input type="button" value="下移" /></li>    <li>3.<input type="button" value="上移" /><input type="button" value="下移" /></li>    <li>4.<input type="button" value="上移" /><input type="button" value="下移" /></li>    <li>5.<input type="button" value="上移" /><input type="button" value="下移" /></li></ul></body></html>
0 0