有些事情不行,有什么工作？
var tgtCol = $('td[aria-describedby=tblGrid_Subject]');
var tgtHdr = $('#tblGrid_Subject');
$(tgtHdr,tgtCol).attr('colSpan','3');
解决方法
var tgtCol = $('td[aria-describedby=tblGrid_Subject]');
var tgtHdr = $('#tblGrid_Subject');
$(tgtHdr).add(tgtCol).attr('colSpan','3');
这也将起作用：
var stuff = $('td[aria-describedby=tblGrid_Subject],#tblGrid_Subject');
stuff.attr('colSpan','3');
