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Xcode iPhone - 基础SDK,Active SDK的区别?

[英]Xcode iPhone - Base SDK, Active SDK difference?

Xcode中的 所有配置的基本SDK”“Active SDK”之间有什么区别?

The "Active SDK" value is effectively a build-time override of your "Base SDK" value, and determines which version of the SDK is used to build your application. “Active SDK”值实际上是“Base SDK”值的构建时覆盖,并确定用于构建应用程序的SDK版本。 In general, you should build your application against the latest stable SDK (at the moment, that's the non-beta 3.0 SDK), and set your "iPhone OS Deployment Target" to the version of the oldest device you intend to support (eg 2.2.1). 通常,您应该针对最新的稳定 SDK构建应用程序(目前,这是非beta 3.0 SDK),并将“iPhone OS部署目标”设置为您打算支持的最旧设备的版本(例如2.2 0.1)。

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