function motionStopFun(e:MotionEvent){
traceText.appendText("停止播放n");
traceText.scrollV = traceText.maxScrollV;
}
//侦听各个面板的change事件
classList.addEventListener("change",changeFun);
funcList.addEventListener("change",changeFun);
durationBar.addEventListener("change",changeFun);
playButton.addEventListener("click",clickFun);
//当属性面板发生数值改变，即触发
function changeFun(e:Event){
motion.rewind();
motion.algorithm = classAr[classList.selectedItem.data][funcList.selectedItem.data];
motion.duration = durationBar.value;
durationText.text = durationBar.value.toString();
}
//播放按钮
function clickFun(e:Event){
if(playButton.selected) motion.resume();
else motion.stop();
}
//4个倒带前进等按钮事件
prevButton.addEventListener(MouseEvent.CLICK,function(){motion.prev()});
nextButton.addEventListener(MouseEvent.CLICK,function(){motion.next()});
forwardButton.addEventListener(MouseEvent.CLICK,function(){motion.forward()});
rewindButton.addEventListener(MouseEvent.CLICK,function(){motion.rewind()});
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