jQuery+CSS3苹果产品介绍自动切换展示动画特效

js代码

<script>
var num=0;
window.setInterval(function(){
  num++;
  var classes=[\'\',\'out\',\'ready\'];
  $(\'#watch\').removeClass();
  $(\'#watch\').addClass(classes[num%3])
  $(\'#phone\').removeClass();
  $(\'#phone\').addClass(classes[(num+2)%3]);
  $(\'#laptop\').removeClass();
  $(\'#laptop\').addClass(classes[(num+1)%3]);
  $(\'.quote span\').removeClass();
  $(\'.quote span:nth-child(\'+ (num%3+1) +\')\').addClass(\'highlight\');
  console.log(num%3+1);
},900)

</script>