yyy 摇一摇 js 代码 有大用

    var speed = 22;  //摇一摇程序，建议值在20-25之间；
    var x = y = z = lastX = lastY = lastZ = 0;  //默认值
    window.addEventListener('devicemotion', function() {
        var acceleration = event.accelerationIncludingGravity;
        x = acceleration.x;
        y = acceleration.y;
        if (Math.abs(x - lastX) > speed || Math.abs(y - lastY) > speed) {
            //window.location.href = 'http://pkt.zoosnet.net/LR/Chatpre.aspx?id=PKT40658297&lng=cn'  //摇动之后的行为，链接可以是报名、咨询、电话支持tel:+号码
            openZoosUrl();return false;
        }
        lastX = x;
        lastY = y
    }, false)
}