echarts4升级为echarts5的常见问题

[ECharts] DEPRECATED: textStyle hierarchy in axisLabel has been removed since 4.0. All textStyle properties are configured in axisLabel directly now.

弃用：axisLabel中的textStyle层次结构自4.0以来已被删除。现在，所有textStyle属性都直接在axisLabel中配置。