��加动画属性
                forEach.call(document.querySelectorAll('.page')[e.cur].querySelectorAll('.js-animate'), function(v) {
                    var time = v.dataset.time;
                    setTimeout(function () {
                        v.classList.add(v.dataset['animate']);
                        v.classList.remove('hide');
                    }, time);
                });
            }
        });
    </script>
</body>
</html>
