通过JS语句判断WEB网站的访问端是电脑还是手机

1 <script type="text/javascript">
2 <!--
3         //平台、设备和操作系统
4         var system = {
5             win: false,
6             mac: false,
7             xll: false,
8             ipad:false
9         };
10         //检测平台
11         var p = navigator.platform;
12         system.win = p.indexOf("Win") == 0;
13         system.mac = p.indexOf("Mac") == 0;
14         system.x11 = (p == "X11") || (p.indexOf("Linux") == 0);
15         system.ipad = (navigator.userAgent.match(/iPad/i) != null)?true:false;
16         //跳转语句，如果是手机访问就自动跳转到wap.baidu.com页面
17         if (system.win || system.mac || system.xll||system.ipad) {
18
19         } else {
20
21             window.location.href = "http://www.jdpatro.com/3g/";
22         }
23 -->
24 </script>

腾讯网的适配代码

1 <script type="text/javascript">
2 if(/AppleWebKit.*Mobile/i.test(navigator.userAgent) || (/MIDP|SymbianOS|NOKIA|SAMSUNG|LG|NEC|TCL|Alcatel|BIRD|DBTEL|Dopod|PHILIPS|HAIER|LENOVO|MOT-|Nokia|SonyEricsson|SIE-|Amoi|ZTE/.test(navigator.userAgent))){
3     if(window.location.href.indexOf("?mobile")<0){
4         try{
5             if(/Android|webOS|iPhone|iPod|BlackBerry/i.test(navigator.userAgent)){
6                 window.location.href="http://shipei.qq.com/index.htm";
7             }else if(/iPad/i.test(navigator.userAgent)){
8             }else{
9                 window.location.href="http://shipei.qq.com/simple/s/index/"
10             }
11         }catch(e){}
12     }
13 }
14 </script>

1 <script type="text/javascript">
2     var browser = {
3         versions : function() {
4             var u = navigator.userAgent, app = navigator.appVersion;
5             return {//移动终端浏览器版本信息
6             trident : u.indexOf('Trident') > -1, //IE内核
7             presto : u.indexOf('Presto') > -1, //opera内核
8             webKit : u.indexOf('AppleWebKit') > -1, //苹果、谷歌内核
9             gecko : u.indexOf('Gecko') > -1 && u.indexOf('KHTML') == -1, //火狐内核
10             mobile : !!u.match(/AppleWebKit.*Mobile.*/)
11                     || !!u.match(/AppleWebKit/), //是否为移动终端
12             ios : !!u.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/), //ios终端
13             android : u.indexOf('Android') > -1 || u.indexOf('Linux') > -1, //android终端或者uc浏览器
14             iPhone : u.indexOf('iPhone') > -1 || u.indexOf('Mac') > -1, //是否为iPhone或者QQHD浏览器
15             iPad: u.indexOf('iPad') > -1, //是否iPad
16             webApp : u.indexOf('Safari') == -1,//是否web应该程序，没有头部与底部
17             google:u.indexOf('Chrome')>-1
18         };
19     }(),
20     language : (navigator.browserLanguage || navigator.language).toLowerCase()
21     }
22     document.writeln("语言版本: "+browser.language);
23     document.writeln(" 是否为移动终端: "+browser.versions.mobile);
24 </script>

JS 判断浏览器客户端类型(ipad,iphone,android)

1 <script type="text/javascript">
2    var bForcepc
3 = fGetQuery("dv") == "pc";
4    function
5 fBrowserRedirect(){
6        var sUserAgent = navigator.userAgent.toLowerCase();
7        var bIsIpad = sUserAgent.match(/ipad/i) ==
8 "ipad";
9        var bIsIphoneOs = sUserAgent.match(/iphone os/i) == "iphone os";
10        var bIsMidp = sUserAgent.match(/midp/i) == "midp";
11        var bIsUc7 = sUserAgent.match(/rv:1.2.3.4/i) == "rv:1.2.3.4";
12        var bIsUc = sUserAgent.match(/ucweb/i) == "ucweb";
13        var bIsAndroid = sUserAgent.match(/android/i) == "android";
14        var bIsCE = sUserAgent.match(/windows ce/i) == "windows ce";
15        var bIsWM = sUserAgent.match(/windows mobile/i) == "windows
16 mobile";
17        if(bIsIpad){
18            var sUrl =
19 location.href;
20            if(!bForcepc){
21                window.location.href = "http://ipad.mail.163.com/";
22            }
23        }
24        if(bIsIphoneOs || bIsAndroid){
25            var sUrl =
26 location.href;
27            if(!bForcepc){
28                window.location.href = "http://smart.mail.163.com/";
29            }
30        }
31        if(bIsMidp||bIsUc7||bIsUc||bIsCE||bIsWM){
32            var sUrl =
33 location.href;
34            if(!bForcepc){
35                window.location.href = "http://m.mail.163.com/";
36            }
37        }
38    }
39    function
40 fGetQuery(name){//获取参数值
41        var sUrl = window.location.search.substr(1);
42        var r = sUrl.match(new RegExp("(^|&)" + name +
43 "=([^&]*)(&|$)"));
44        return (r == null ? null : (r[2]));
45    }
46    function
47 fShowVerBlock(){
48        if(bForcepc){
49            document.getElementByIdx_x("dv_block").style.display = "block";
50        }
51        else{
52            document.getElementByIdx_x("ad_block").style.display = "block";
53        }
54    }
55    fBrowserRedirect();
56    </script>