微信小程序：动画效果

html

<view class='aa'><image animation="{{animationData0}}" class='img0' style='z-index: {{index==0?"2":"1"}};' bindtap='bindtap_img' id='0' src="/images/997.jpg"></image>
<image animation="{{animationData1}}" class='img1' style='z-index: {{index==1?"2":"1"}};' bindtap='bindtap_img' id='1' src="/images/fenxiang.png"></image>
<image animation="{{animationData2}}" class='img2' style='z-index: {{index==2?"2":"1"}};' bindtap='bindtap_img' id='2' src="/images/fenxiang1.png"></image></view>



<view class='aa'><image animation=