判断移动端设备: navigator.userAgent.toLowerCase()

判断你的浏览设备： navigator.userAgent.toLowerCase(); （返回当前用户所使用的是什么浏览器，将获得的信息变成小写）

function browserRedirect() {
            var _devices= navigator.userAgent.toLowerCase();
            var bIsIpad = _devices.match(/ipad/i) == "ipad";
            var bIsIphoneOs = _devices.match(/iphone os/i) == "iphone os";
            var bIsMidp = _devices.match(/midp/i) == "midp";
            var bIsUc7 = _devices.match(/rv:1.2.3.4/i) == "rv:1.2.3.4";
            var bIsUc = _devices.match(/ucweb/i) == "ucweb";
            var bIsAndroid = _devices.match(/android/i) == "android";
            var bIsCE = _devices.match(/windows ce/i) == "windows ce";
            var bIsWM = _devices.match(/windows mobile/i) == "windows mobile";
            document.writeln("您的浏览设备为：");
            if (bIsIpad || bIsIphoneOs || bIsMidp || bIsUc7 || bIsUc || bIsAndroid || bIsCE || bIsWM) {
                // document.writeln("phone");
                //  移动设备显示状态
            } else {
            　　//  pc设备显示状态
            }
        }