| targetGuid | [[TargetGuidByName()]] 返回的目标的 GUID。 |
| capability | 要启用的功能。 |
| entitlementFileName | 要用于此功能的权限文件的路径。有关权限文件内容的信息，请访问 https://developer.apple.com/library/content/documentation/Miscellaneous/Reference/EntitlementKeyReference/Chapters/AboutEntitlements.html |
| addOptionalFramework | 将此参数设置为 true，可指示此功能需要其他框架。如果不需要其他框架，则将其设置为 false。 |
void 如果已成功添加了该功能，则返回 true，否则返回 false。
向 Xcode 项目添加目标功能。这将支持基于功能类型的行为。某些功能需要在 Xcode 中进行额外设置。要更好地控制功能的特定设置，请使用 ProjectCapabilityManager 类。
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