HTML5网盘文件扫描加载特效.zip

代码片段：functionDrawfinsh(cxt,r,rot){cxt.save();cxt.beginPath();cxt.arc(w/2,h/2,r20,0,2*Math.PI);cxt.strokeStyle="rgba(255,255,255,0.3)";cxt.lineWidth=6;cxt.stroke();cxt.restore();cxt.closePath();}