在Wordpress中顯示IE8，IE7，IE6的瀏覽器升級警告

Question

我正在開發Wordpress網站。 但是大多數功能未在IE8瀏覽器中顯示。 因此，我計划顯示瀏覽器升級警告，但不起作用。 誰能幫我。

<script> 
var $buoop = {vs:{i:9,f:15,o:12.1,s:5.1},c:2}; 
function $buo_f(){ 
 var e = document.createElement("script"); 
 e.src = "//browser-update.org/update.js"; 
 document.body.appendChild(e);
};
try {document.addEventListener("DOMContentLoaded", $buo_f,false)}
catch(e){window.attachEvent("onload", $buo_f)}
</script> 

Answer 1

您可以使用IE條件注釋：

<!--[if lt IE 9]>
<script src="//browser-update.org/update.js"></script>
<![endif]-->

Answer 2

你可以試試這個

    <!--[if IE 5]>
<script language="Javascript">
<!--
alert ("It looks like you aren't using Internet Explorer 7. To see our site correctly, please update.")
//-->
</script>
<![endif]-->
<!--[if IE 5.0]>
!--
alert ("It looks like you aren't using Internet Explorer 7. To see our site correctly, please update.")
//-->
</script>
<![endif]-->
<!--[if IE 5.5]>
!--
alert ("It looks like you aren't using Internet Explorer 7. To see our site correctly, please update.")
//-->
</script>
<![endif]-->
<!--[if IE 6]>
!--
alert ("It looks like you aren't using Internet Explorer 7. To see our site correctly, please update.")
//-->
</script>
<![endif]-->