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圆随鼠标的移而移动
<br> var elem=document.getElementById("elem");<br> var two=new Two({height:200,width:200}).appendTo(elem);<br> var circle=two.makeCircle(50,50,20);<br> circle.fill="#F80";<br> circle.noStroke();<br> two.on("update",function(event){<br> var x=event.offsetX;//undefined<br> var y=event.offsetY;<br> circle.translation.set(x,y);<br> // two.update();<br> }).play();</p> <pre><code></script> </code></pre> <p></html></p>