1. 云图网首页
  2. https://developer.harmonyos.com/cn/docs/documentation/doc-references/text-0000001054838676#ZH-CN_TOPIC_0000001054838676__getLineCount–

https://developer.harmonyos.com/cn/docs/documentation/doc-references/text-0000001054838676#ZH-CN_TOPIC_0000001054838676__getLineCount–