会有点麻烦，思路是，先获取到高亮事件：http://echarts.baidu.com/api.html#events.%E9%BC%A0%E6%A0%87%E4%BA%8B%E4%BB%B6 获得对应 X 轴 id，然后手动通过 setOption 改变相应样式。
[ Full content available at: https://github.com/apache/incubator-echarts/issues/8983 ] This message was relayed via gitbox.apache.org for [email protected]
