您可以通过多种方式实现这一点，PHP、纯Javascript、Jquery。。。取决于主题/应用程序中的许多其他变量。我可以列出所有方法的利弊，但这不是正确的地方。。

例如，在php中，您可以直接在用户代理上或通过get\\u browser（）使用浏览器检测。

简单示例：

if(strstr($_SERVER[\'HTTP_USER_AGENT\'],\'iPod\') || strstr($_SERVER[\'HTTP_USER_AGENT\'],\'iPhone\'))
{
    // LINK TO NORMAL 
}else {
            //were not - put SWF
    }

$iPod = stripos($_SERVER[\'HTTP_USER_AGENT\'],"iPod");
$iPhone = stripos($_SERVER[\'HTTP_USER_AGENT\'],"iPhone");
$iPad = stripos($_SERVER[\'HTTP_USER_AGENT\'],"iPad");

if( $iPod || $iPhone || $iPad ){
        //were an iPhone/iPod touch/iPad -- Load normal link 
}else {
        //were not - put SWF
}
?>  

//Detect special conditions devices

$iPod = stripos($_SERVER[\'HTTP_USER_AGENT\'],"iPod");
$iPhone = stripos($_SERVER[\'HTTP_USER_AGENT\'],"iPhone");
$iPad = stripos($_SERVER[\'HTTP_USER_AGENT\'],"iPad");
if(stripos($_SERVER[\'HTTP_USER_AGENT\'],"Android") && stripos($_SERVER[\'HTTP_USER_AGENT\'],"mobile")){
        $Android = true;
}else if(stripos($_SERVER[\'HTTP_USER_AGENT\'],"Android")){
        $Android = false;
        $AndroidTablet = true;
}else{
        $Android = false;
        $AndroidTablet = false;
}
$webOS = stripos($_SERVER[\'HTTP_USER_AGENT\'],"webOS");
$BlackBerry = stripos($_SERVER[\'HTTP_USER_AGENT\'],"BlackBerry");
$RimTablet= stripos($_SERVER[\'HTTP_USER_AGENT\'],"RIM Tablet");
//do something with this information
if( $iPod || $iPhone ){
        //were an iPhone/iPod touch -- do something here
}else if($iPad){
        //were an iPad -- do something here
}else if($Android){
        //were an Android Phone -- do something here
}else if($AndroidTablet){
        //were an Android Phone -- do something here
}else if($webOS){
        //were a webOS device -- do something here
}else if($BlackBerry){
        //were a BlackBerry phone -- do something here
}else if($RimTablet){
        //were a RIM/BlackBerry Tablet -- do something here
}

您也可以在此处进行全体重训练：

http://chrisschuld.com/projects/browser-php-detecting-a-users-browser-from-php/