派生到我的代码片    <script type="text/javascript">        //返回当前工作目录        function GetCurrDir(){          var pathName = window.location.pathname.substring(1);           var DirName = pathName == ‘‘ ? ‘‘ : pathName.substring(0, pathName.lastIndexOf(‘/‘));           var reg=new RegExp("%20","g");          return DirName.replace(reg, " ");//替换空格          }      </script>