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App Inventor 2 OCR 文字识别方案：在线云 API 与离线拓展 · App Inventor 2 中文网
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3、离线 OCR 拓展：本地识别，不依赖云服务
4、如何选型
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OCR 可以走在线云 API，也可以直接在手机本地识别：
方案
适合场景
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在线 OCR
接入快、云端...
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