js 判断是否是手机or电脑浏览做出其他动作

记得在页面调用JS：
<script type="text/javascript" src="js/publicLHW.js"></script>
把下面js 保存到 publicLHW.js

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) {
    	console.log("Mob");
        return true;
    } else {
    	console.log("PC");
        return false;
    }
};

调用方法——栗子1：

    $(function() {
        if (browserRedirect() == false) {
            $(window).scroll(function() {
                if ($(window).scrollTop() > $("#banner").height()) {
                    $(".header").css("background", "rgba(0,0,0,0.6)");
                } else if ($(window).scrollTop() > $(".nbanner").height() * 0.75) {
                    $(".header").css("background", "rgba(0,0,0,0.6)");
                } else {
                    $(".header").css("background", "rgba(0,0,0,0)");
                }
            });
        }
    })

栗子2：

        if(browserRedirect() == false){
            // PC 导航按钮
                $(".nav_btn").click(function(){
                $(this).toggleClass("nav_btn_close");
                // $("#nav").slideToggle();
            });
        }else{
            //手机端导航按钮
        $(".nav_btn").click(function(){
            $(this).toggleClass("nav_btn_close");
            $("#nav").slideToggle();
        });
    };