Unity 支持自动的 插件在 Unity 外部创建的一组代码，可以在 Unity 中创建功能。你可以在 Unity 中使用两种插件：托管插件（使用 Visual Studio 等工具创建的托管 .NET 程序集）和原生插件（特定于平台的原生代码库）。了解更多信息
参见 术语表集成，并将以下扩展名的文件复制到生成的 Xcode 项目：.a、.m、.mm、.c、.cpp、.h、.swift。
要启用自动化插件集成，请在插件 检查器一个 Unity 窗口，用于显示有关当前选定的 GameObject、资源或项目设置的信息，便于你检查和编辑值。了解更多信息
参见 术语表中启用 iOS 插件。
如果你将具有这些扩展名的文件放置在 Assets/Plugins/iOS 文件夹中，Unity 只会为 iOS 平台启用它们。
注意：已复制到所生成 Xcode 项目中的文件不再链接到你的 Unity 项目中的对应文件。如果你在 Xcode 中更改这些文件，你必须将它们复制回 Unity 项目。否则，Unity 会在你下一次构建项目时覆盖它们。
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