在做PC端的过程中，经常会涉及到手机端的显示，当设备为手机端的时候，会跳转到针对手机端开发的页面，此时可以用js的navigator对象里的方法进行判断：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>JS的navigator对象</title>
</head>
<body>
<div id="example"></div>
<script>
txt = "<p>浏览器代号: " + navigator.appCodeName + "</p>";
txt+= "<p>浏览器名称: " + navigator.appName + "</p>";
txt+= "<p>浏览器版本: " + navigator.appVersion + "</p>";
txt+= "<p>启用Cookies: " + navigator.cookieEnabled + "</p>";
txt+= "<p>硬件平台: " + navigator.platform + "</p>";
txt+= "<p>用户代理: " + navigator.userAgent + "</p>";
txt+= "<p>用户代理语言: " + navigator.systemLanguage + "</p>";
document.getElementById("example").innerHTML=txt;
</script>
</body>
</html>
常用的JS方法：
(function() {
var sUserAgent = navigator.userAgent;
if (sUserAgent.indexOf('Android') > -1 || sUserAgent.indexOf('iPhone') > -1 || sUserAgent.indexOf('iPad') > -1 || sUserAgent.indexOf('iPod') > -1 || sUserAgent.indexOf('Symbian') > -1) {
location.href = '要跳转的手机网址';
} else {}
})();
