代码简单,兼容性还可以

<script>
function SetWinHeight(obj)
{
 var win=obj;
 if (document.getElementById)
 {
  if (win && !window.opera)
  {
   if (win.contentDocument && win.contentDocument.body.offsetHeight)
   win.height = win.contentDocument.body.offsetHeight;
   else if(win.Document && win.Document.body.scrollHeight)
   win.height = win.Document.body.scrollHeight;
  }
 }
}

</script>

最后,加入iframe,不能丢掉onload属性,当然了,id也必须也函数中的win匹配

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