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README.md

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 # AILinkSecretToolDemo_Android
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+#[中文](README_zh.md)
 
 ### 1、Usage description
 AILinkSecretAndroid is a Bluetooth encryption and decryption toolkit developed using java/c++ on the Android platform. The development kit can scan and connect to smart devices using AILink Bluetooth modules, and is responsible for the handshake between App and Bluetooth modules and the encryption and decryption of A7 data

README_zh.md

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 # AILinkSecretToolDemo_Android
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+#[English](README.md)
 
 ### 一、用途说明
 AILinkSecretAndroid是在Android平台使用java/c++开发的蓝牙加解密工具包，该开发工具包能够扫描、连接使用AILink蓝牙模组的智能设备，负责App与蓝牙模组之间的握手与A7数据的加解密。