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演示代码
上下分合效果

<!--上下渐入效果复制-->
<img id="image1" src="01.jpg" style="position:absolute; left:0; top:0;" class="time" begin="1">

<t:transitionFilter id="barnDoorWipe1" targetElement="image1" type="barnDoorWipe" subtype="horizontal" mode="in" begin="image1.begin" dur="2" autoreverse="false" repeatcount="1" />

<!--上下渐出效果复制-->
<img id="image2" src="02.jpg" style="position:absolute; left:200; top:0;" class="time" end="barnDoorWipe2.end">

<t:transitionFilter id="barnDoorWipe2" targetElement="image2" type="barnDoorWipe" subtype="horizontal" mode="out" begin="barnDoorWipe1.end" dur="2" autoreverse="false" repeatcount="1" />