手机浏览器判断是android或者iPhone跳转

 
    var browser = {
        versions: function () {
            var u = navigator.userAgent.toLowerCase();
            return {//移动终端浏览器版本信息
                android: u.indexOf('android') > -1 || u.indexOf('linux') > -1,
                iPhone: u.indexOf('iphone') > -1 || u.indexOf('ipad') > -1
            };
        } (),
        language: (navigator.browserLanguage || navigator.language).toLowerCase()
    }
    if (browser.versions.iPhone) {
        window.location.href = "aaa";
    } else if (browser.versions.android) {
        window.location.href = "bbb";
    } else {
        window.location.href = "ccc";
    }