js判断手机访问或者PC的几个例子(常用于手机跳转)
例子一
<script>
function browserRedirect() {
var sUserAgent = navigator.userAgent.toLowerCase();
var bIsIpad = sUserAgent.match(/ipad/i) == "ipad";
var bIsIphoneOs = sUserAgent.match(/iphone os/i) == "iphone os";
var bIsMidp = sUserAgent.match(/midp/i) == "midp";
var bIsUc7 = sUserAgent.match(/rv:1.2.3.4/i) == "rv:1.2.3.4";
var bIsUc = sUserAgent.match(/ucweb/i) == "ucweb";
var bIsAndroid = sUserAgent.match(/android/i) == "android";
var bIsCE = sUserAgent.match(/windows ce/i) == "windows ce";
var bIsWM = sUserAgent.match(/windows mobile/i) == "windows mobile";
if (!(bIsIpad || bIsIphoneOs || bIsMidp || bIsUc7 || bIsUc || bIsAndroid || bIsCE || bIsWM) ){
window.location.href='http://www.jb51.net';
}else{
//window.location.href='http://m.jb51.net';
}
}
$(function(){
browserRedirect();
});
</script>
例子2
<script type="text/javascript">
(function(){
var reWriteUrl = function(url){
if(url){
var Splits = url.split("/"),siteName=window.location.pathname;
if(typeof siteName!=="undefined"){
return "http://m.jb51.net"+siteName;
}
}
};
if(/Android|webOS|iPhone|iPad|Windows Phone|iPod|BlackBerry|SymbianOS|Nokia|Mobile/i.test(navigator.userAgent)){
var url=window.location.href;
var pathname=window.location.pathname;
if(url.indexOf("?mobile")<0){
try{
window.location.href=reWriteUrl(url);
}catch(e){}
}
};
})();
</script>
注意，如果给搜索引擎看的话我们在文件头加入
<meta http-equiv="mobile-agent" content="format=xhtml; url=http://m.jb51.net" />
<meta http-equiv="mobile-agent" content="format=html5; url=http://m.jb51.net" />
意思是告诉搜索引擎移动蜘蛛抓取的是手机版本的．
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