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如何切换iPhone SDK的版本?

[英]How to switch versions of iPhone SDK?

Now that I installed SDK 3.2 for my iPad development, I need to build with the previous version for my old iTouch. 现在,我已经为iPad开发安装了SDK 3.2,现在需要使用旧版本的旧iTouch进行构建。 Is this possible to switch or do I have to uninstall 3.2, install 3.1.x and re-install 3.2 in a "versioned" folder? 是否可以切换,还是必须卸载3.2,安装3.1.x并在“版本”文件夹中重新安装3.2?

If you go to build settings (right click on your project and click info) you can set the base sdk for the project. 如果您要进行构建设置(右键单击您的项目,然后单击信息),则可以设置该项目的基本SDK。 the setting is right up the top of the list. 该设置位于列表的顶部。 if you set it back to 3.0 (for example) then you can choose all releases from then till now. 如果您将其设置回3.0(例如),则可以选择从那时到现在的所有发行版。

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