[Web开发] 检测IE版本号的方法总结

检测IE版本方法

最新推荐文章于 2025-09-13 09:06:35 发布

转载最新推荐文章于 2025-09-13 09:06:35 发布 · 139 阅读

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原文链接：https://yq.aliyun.com/articles/408414

文章标签：

#javascript #ViewUI

本文介绍多种检测Internet Explorer浏览器版本的方法，包括通过JavaScript解析User-Agent字符串、判断IE渲染引擎的渲染模式、利用ASP.NET的HttpBrowserCapabilities对象及使用HTML扩展注释语句。

检测浏览器（比如IE）的版本号码是Web 开发最常遇到的问题之一，以下总结几种检测IE版本号码的方法：

通过Javascript解释浏览器的 User-Agent 字符串：

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function getInternetExplorerVersion()
// Returns the version of Internet Explorer or a -1
// (indicating the use of another browser).
{
var rv = -1; // Return value assumes failure.
if (navigator.appName == 'Microsoft Internet Explorer')
{
    var ua = navigator.userAgent;
    var re = new RegExp("MSIE ([0-9]{1,}[\.0-9]{0,})");
    if (re.exec(ua) != null)
      rv = parseFloat( RegExp.$1 );
}
return rv;
}
function checkVersion()
{
var msg = "You're not using Internet Explorer.";
var ver = getInternetExplorerVersion();

if ( ver > -1 )
{
    if ( ver >= 8.0 )
      msg = "You're using a recent copy of Internet Explorer."
    else
      msg = "You should upgrade your copy of Internet Explorer.";
}
alert( msg );
}
function getInternetExplorerVersion()
// Returns the version of Internet Explorer or a -1
// (indicating the use of another browser).
{
var rv = -1; // Return value assumes failure.
if (navigator.appName == 'Microsoft Internet Explorer')
{
    var ua = navigator.userAgent;
    var re = new RegExp("MSIE ([0-9]{1,}[\.0-9]{0,})");
    if (re.exec(ua) != null)
      rv = parseFloat( RegExp.$1 );
}
return rv;
}
function checkVersion()
{
var msg = "You're not using Internet Explorer.";
var ver = getInternetExplorerVersion();

if ( ver > -1 )
{
    if ( ver >= 8.0 )
      msg = "You're using a recent copy of Internet Explorer."
    else
      msg = "You should upgrade your copy of Internet Explorer.";
}
alert( msg );
}

通过Javascript判断IE渲染引擎的的当前渲染模式：

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engine = null;
if (window.navigator.appName == "Microsoft Internet Explorer")
{
   // This is an IE browser. What mode is the engine in?
   if (document.documentMode) // IE8
      engine = document.documentMode;
   else // IE 5-7
   {
      engine = 5; // Assume quirks mode unless proven otherwise
      if (document.compatMode)
      {
         if (document.compatMode == "CSS1Compat")
            engine = 7; // standards mode
      }
   }
   // the engine variable now contains the document compatibility mode.
}
engine = null;
if (window.navigator.appName == "Microsoft Internet Explorer")
{
   // This is an IE browser. What mode is the engine in?
   if (document.documentMode) // IE8
      engine = document.documentMode;
   else // IE 5-7
   {
      engine = 5; // Assume quirks mode unless proven otherwise
      if (document.compatMode)
      {
         if (document.compatMode == "CSS1Compat")
            engine = 7; // standards mode
      }
   }
   // the engine variable now contains the document compatibility mode.
}

通过ASP.NET 的 HttpBrowserCapabilities 对象:

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private float getInternetExplorerVersion()
{
// Returns the version of Internet Explorer or a -1
// (indicating the use of another browser).
float rv = -1;
System.Web.HttpBrowserCapabilities browser = Request.Browser;
if (browser.Browser == "IE")
    rv = (float)(browser.MajorVersion + browser.MinorVersion);
return rv;
}

private void Page_Load(object sender, System.EventArgs e)
{
string msg;
double ver = getInternetExplorerVersion();
if (ver > 0.0)
{
    if (ver >= 7.0)
      msg = "You're using a recent version of Internet Explorer.";
    else
      msg = "You should upgrade your copy of Internet Explorer.";
}
else
    msg = "You're not using Internet Explorer.";

Label1.Text = msg;
}
private float getInternetExplorerVersion()
{
// Returns the version of Internet Explorer or a -1
// (indicating the use of another browser).
float rv = -1;
System.Web.HttpBrowserCapabilities browser = Request.Browser;
if (browser.Browser == "IE")
    rv = (float)(browser.MajorVersion + browser.MinorVersion);
return rv;
}

private void Page_Load(object sender, System.EventArgs e)
{
string msg;
double ver = getInternetExplorerVersion();
if (ver > 0.0)
{
    if (ver >= 7.0)
      msg = "You're using a recent version of Internet Explorer.";
    else
      msg = "You should upgrade your copy of Internet Explorer.";
}
else
    msg = "You're not using Internet Explorer.";

Label1.Text = msg;
}

通过HTML的扩展注释语句：

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<![if !IE]>
You're not using Internet Explorer.
<![endif]>

<![if !IE]>
You're not using Internet Explorer.
<![endif]>

有些方法在之前的blog文章提过

http://wingeek.blog.51cto.com/1226974/273598

http://wingeek.blog.51cto.com/1226974/273594

MSDN参考文章：(1), (2)

本文转自陈本峰 51CTO博客，原文链接：http://blog.51cto.com/wingeek/273650，如需转载请自行联系原作者