var aaa=function (buttonid)
{
document.getElementById("sss").innerHTML+="<button id="+buttonid+">"+buttonid+"</button>";
document.getElementById(buttonid).onclick=function(){alert()}
}
var obj1=new aaa('button1')
var obj2=new aaa('button2')
请问:为什么button1不响应事件,如果不把onclick写在button 标签里如何解决