目录一、简介二、具体案例实现1. 图像显示函数2. 指纹验证函数3. 主函数4、运行结果三、总结一、简介
I\'ve got a couple of Core Data-gene开发者_如何学运维rated class files that I\'d like to add custom methods to. I don\'t need to add any instance variables. How can I do this?
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