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老生常谈category增加属性的几种操作 | JungHsu's Blog

 6 years ago
source link: https://www.junghsu.top/2017/12/07/%E8%80%81%E7%94%9F%E5%B8%B8%E8%B0%88category%E5%A2%9E%E5%8A%A0%E5%B1%9E%E6%80%A7%E7%9A%84%E5%87%A0%E7%A7%8D%E6%93%8D%E4%BD%9C/?
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前言 日常开发中，为一个已有的类(比如说不想影响其文件结构)、第三方库提供的类增加几个property，已经是十分常见且需要的操作了，有人会单独起草一份category.m文件，也有人直接继承，像我一般会用category，一是能减少类文件的数量提高编译速度，二也是为了代码结构更加清晰。 这篇文章

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