為何從新設(shè)置points屬性然后調(diào)用draw方法不會(huì)清空之前的繪制呢？點(diǎn)擊之后變成了兩條線(xiàn)<div id="container"></div><script src="./lib/jquery/dist/jquery.js" charset="utf-8"></script><script src="./lib/konva/konva.js" charset="utf-8"></script><script type="text/javascript">    $(function() {      const stage = new Konva.Stage({        container: '#container',        width: window.innerWidth,        height: window.innerHeight,      });      const layer = new Konva.Layer();      const line = new Konva.Line({        points: [10, 10, 100, 100],        stroke: 'black',        strokeWidth: 3,      });          line.on('click', event => {        line.points([10, 10, 100, 10]);        line.draw();      });          layer.add(line);      stage.add(layer);    });</script>