三个环形图（万一是n个呢）

https://gallery.echartsjs.com/editor.html?c=xX_IZAo6cg 多个圆环图

https://gallery.echartsjs.com/editor.html?c=xAqxk9ZhVv 多个饼图

https://gallery.echartsjs.com/editor.html?c=x3GHqfOgql 多个展位图，圆形