junjincatvan的专栏

$("#scarletable").find("select[name='scarletletter']").each(function (i){ if (this.value == '0') { alert("您好，请选择xxxx！"); this.focus(); } });

//两种方法设置disabled属性$('#属性id').attr("disabled",true);$('#属性id').attr("disabled","disabled");//三种方法移除disabled属性$('#属性id').attr("disabled",false);$('#属性id').removeAttr("disabled");$('#属性id').attr("d.