目录1、二维码简介2、ZXing简介3、示例3.1 搭建一个maven项目，引入Zxing依赖包3.2 创建QrCodeUtil.Java 类总结1、二维码简介
I wo开发者_JAVA技巧uld like to confirm whether I am on the right track when identifying common UML class relationships. For example, is the relationship between:
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