代码如下
var selObj = document.createElement("select"); selObj.name = emname + "_top";//加name selObj.id = emname + '_top';//加id selObj.className = emname + '_top';//加class document.forms[0].s.setAttribute("title", "hello");//设置title document.getElementsByTagName("INPUT")[0].setAttribute("type","button"); //改变属性类型 selObj.setAttribute("lay-ignore", "");//设置为空即可增加一个字符