EasyUI datagrildview导出excel报表

$.extend($.fn.datagrid.methods, {
      toExcel: function(jq, filename){
        return jq.each(function(){
          var uri = \'data:application/vnd.ms-excel;base64,\'
          , template = \'<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns="http://www.w3.org/TR/REC-html40"><head><!--[if gte mso 9]><xml><x:ExcelWorkbook><x:ExcelWorksheets><x:ExcelWorksheet><x:Name>{worksheet}</x:Name><x:WorksheetOptions><x:DisplayGridlines/></x:WorksheetOptions></x:ExcelWorksheet></x:ExcelWorksheets></x:ExcelWorkbook></xml><![endif]--></head><body><table>{table}</table></body></html>\'
          , base64 = function (s) { return window.btoa(unescape(encodeURIComponent(s))) }
          , format = function (s, c) { return s.replace(/{(\w+)}/g, function (m, p) { return c[p]; }) }

          var alink = $(\'<a style="display:none"></a>\').appendTo(\'body\');
          var view = $(this).datagrid(\'getPanel\').find(\'div.datagrid-view\');
          
          var table = view.find(\'div.datagrid-view2 table.datagrid-btable\').clone();
          var tbody = table.find(\'>tbody\');
          view.find(\'div.datagrid-view1 table.datagrid-btable>tbody>tr\').each(function(index){
            $(this).clone().children().prependTo(tbody.children(\'tr:eq(\'+index+\')\'));
          });
          
          var head = view.find(\'div.datagrid-view2 table.datagrid-htable\').clone();
          var hbody = head.find(\'>tbody\');
          view.find(\'div.datagrid-view1 table.datagrid-htable>tbody>tr\').each(function(index){
            $(this).clone().children().prependTo(hbody.children(\'tr:eq(\'+index+\')\'));
          });    
          hbody.prependTo(table);
          
          var ctx = { worksheet: name || \'Worksheet\', table: table.html()||\'\' };
          alink[0].href = uri + base64(format(template, ctx));
          alink[0].download = filename;
          alink[0].click();
          alink.remove();
        })
      }
    });

function toExcel(){
    $("#dg").datagrid(\'toExcel\',"员工绩效激励统计表.xls");
}
一个坑
rownum=false
如果等于true的话导出复杂表格会变形