打个记号, Python 可视化库 Altair
https://mp.weixin.qq.com/s/x4pNNMvAYEbz4MCK6eGs9Q?from=singlemessage&isappinstalled=0&scene=1&clicktime=1579365665&enterid=1579365665
https://mp.weixin.qq.com/s/x4pNNMvAYEbz4MCK6eGs9Q?from=singlemessage&isappinstalled=0&scene=1&clicktime=1579365665&enterid=1579365665