如何获取bh1750软件包bh1750.c文件的光照强度数据？

[img]https://oss-club.rt-thread.org/uploads/20220404/acb895b654644f090654304fb4da123f.png.webp[/img]
[img]https://oss-club.rt-thread.org/uploads/20220404/b536a0cfaf2c937d826c742bfa3acebe.png.webp[/img]
请问怎么将bh1750软件包2.0里的bh1750_read_light是光强的数据吗？(onenet_mqtt_upload_string("light", 这里应该是什么) < 0)