按钮变成不可见,在线等!!!

Question

<input id=gua type="button" onclick="gua()">
<script>
function gua()
{ window.open(...);
  gua.style.display=none;
}
</script>

Answer 1

<input onclick="window.open('about:blank');style.display='none'" type=button value=open>

Answer 2

实现不能再点击效果
还可以
gua.disabled=true;

Answer 3

<input onclick="window.open('about:blank');style.visibility='hidden'" type=button value=open>