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人脸识别签到APP

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ReadOtherPreferences：用于记录UseCount应用程序的使用次数

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UseCount：记录本应用程序的使用次数

Watch Just7chambray/Android_Class4

UseCount：记录本应用程序的使用次数

Watch Just7chambray/Android_Class4_SQLite

使用Android的API操作SQLite数据库