https://developers.weixin.qq.com/doc/offiaccount/Intelligent_Interface/OCR.html
这个OCR识别接口，公众号可以调用吗？内侧期间是什么意思？我测试公众号调用接口是可以返回数据的
相关文档
- OCR Support: Mini Program/Development/Capabilities/Extended capabilities/Plug-in services/OCR Support
- OCR检测: 小程序/开发/指南/基础能力/AI/AR/VisionKit 视觉能力/OCR检测
- OCR 支持: 小程序/开发/平台能力/扩展能力/插件服务/OCR 支持
- Request permission: Mini Program/Development/Capabilities/Extended capabilities/Plug-in services/OCR Support
- Invocation limitation: Mini Program/Development/Capabilities/Extended capabilities/Plug-in services/OCR Support