[https://echarts.apache.org/zh/option.html#series-bar.label](https://link.segmentfault.com/?enc=GiIfJbCAdI9y39OnG88sRQ%3D%3D.U92WYJlsBh%2BXHokfs4zwodqrJO2FNhPBujn%2FnAP0z73F3zr63Zm%2BhFhkKilP6bpB%2FHQVlR7TeV85F1iL%2FwQ41g%3D%3D) 参考这个配置项 