js判断是否手机访问

㈠ 如何用js判断是用电脑访问还是用手机访问网站

这里有两种比较简单的方法可以使用：
解决方案一
<script type="text/javascript">
//判断是否移动端访问
browserRedirect();
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://gz.gzwhir.com/jpcg201409177619/index.aspx";
}
}
</script>

解决方案二
<script src="http://siteapp..com/static/webappservice/uaredirect.js" type="text/javascript"></script>
<script type="text/javascript">uaredirect("你的手机版网址");</script>