闪电和蛇

游戏或者动画中使用到时间轴动画，在暂停时mc未必跟着主时间轴停下来，写个简单递归吧。
function stopAllAnimations( mc:MovieClip = null ):void
{
if( !mc ) mc = this as MovieClip;

for(var i:int = 0; i < mc.numChildren ; i++)
{
if( (mc.getChildAt( i ) is MovieClip) == false ) continue;

MovieClip( mc.getChildAt( i ) ).stop();
if( mc.numChildren > 0 )
stopAllAnimations( MovieClip( mc.getChildAt( i ) ) );
}
}

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