判断当前移动端是安卓还是IOS

//判断当前是否为安卓OR苹果

function detect(){
    var equipmentType = "";
    var agent = navigator.userAgent.toLowerCase();
    var android = agent.indexOf("android");
    var iphone = agent.indexOf("iphone");
    var ipad = agent.indexOf("ipad");
    if(android != -1){
        equipmentType = "android";
    }
    if(iphone != -1 || ipad != -1){
        equipmentType = "ios";
    }
    return equipmentType;
}

equipmentType返回值为ios代表当前为苹果手机

equipmentType返回值为andriod代表当前为安卓手机

//判断当前是否为PC端

function isPC() {
    var a = /macintosh|window/.test(navigator.userAgent.toLowerCase());
    if(/chrome/.test(navigator.userAgent.toLowerCase())) {
        a = true
    }
    return a
}

//判断当前是否为app内环境

function isApp(a, b) {
    b = b || navigator.userAgent;
    if(a === "wx") {
        return(/micromessenger/i.test(b))
    }
    if(a === "qq") {
        return(/qq\//i.test(b))
    }
    if(a === "weibo") {
        return(/weibo/i.test(b))
    }
    return false
}