JS代码判断IE6,IE7,IE8,IE9的函数代码

  做网页有时候会用到JS检测IE的版本,下面是检测Microsoft Internet Explorer版本的三种代码!

  第一种:

  

复制代码 代码如下:

  <script type="text/javascript">

  var browser=navigator.appName

  var b_version=navigator.appVersion

  var version=b_version.split(";");

  var trim_Version=version[1].replace(/[ ]/g,"");

  if(browser=="Microsoft Internet Explorer" && trim_Version=="MSIE6.0")

  {

  alert("IE 6.0");

  }

  else if(browser=="Microsoft Internet Explorer" && trim_Version=="MSIE7.0")

  {

  alert("IE 7.0"); window.location.href="http://xxxx.com";

  }

  else if(browser=="Microsoft Internet Explorer" && trim_Version=="MSIE8.0")

  {

  alert("IE 8.0");

  }

  else if(browser=="Microsoft Internet Explorer" && trim_Version=="MSIE9.0")

  {

  alert("IE 9.0");

  }

  </script>

  第二种:

  

复制代码 代码如下:

  <script type="text/javascript">

  if(navigator.appName == "Microsoft Internet Explorer" && navigator.appVersion .split(";")[1].replace(/[ ]/g,"")=="MSIE6.0")

  {

  alert("IE 6.0");

  }

  else if(navigator.appName == "Microsoft Internet Explorer" && navigator.appVersion .split(";")[1].replace(/[ ]/g,"")=="MSIE7.0")

  {

  alert("IE 7.0");

  }

  else if(navigator.appName == "Microsoft Internet Explorer" && navigator.appVersion .split(";")[1].replace(/[ ]/g,"")=="MSIE8.0")

  {

  alert("IE 8.0");

  }

  else if(navigator.appName == "Microsoft Internet Explorer" && navigator.appVersion .split(";")[1].replace(/[ ]/g,"")=="MSIE9.0")

  {

  alert("IE 9.0");

  }

  </script>

  第三种:

  

复制代码 代码如下:

  <script type="text/javascript">

  if(navigator.appName == "Microsoft Internet Explorer" && navigator.appVersion.match(/7./i)=="7.")

  {

  alert("IE 7.0");

  }

  else if(navigator.appName == "Microsoft Internet Explorer" && navigator.appVersion.match(/8./i)=="8.")

  {

  alert("IE 8.0");

  }

  else if(navigator.appName == "Microsoft Internet Explorer" && navigator.appVersion.match(/9./i)=="9.")

  {

  alert("IE 9.0");

  }

  else if(navigator.appName == "Microsoft Internet Explorer")

  {

  alert("IE 6.0");

  }

  </script>