问题描述
只需在新的xcode 4.3.1上运行ARC重构工具，并注意到我的（非原子，保留）属性正在换出（非原子）而不是（非原子，强），就像前面的xcode一样。
Just running the ARC refactoring tool on the new xcode 4.3.1 and noticed that my (nonatomic, retain) properties are being swapped out for just (nonatomic) instead of (nonatomic, strong) like in the previous xcode.
我的代码似乎在这次更改后运行正常，所以我假设它默认为强大，任何人都知道为什么ARC转换器发生了变化？
My code seems to run fine after this change so I am assuming that it is defaulting to strong anyway, anyone know why things have changed with the ARC converter?
推荐答案
是的， strong 是Xcode 4.3及更高版本中的默认值。它在和Apple的和使用ARC 。
Yes, strong is the default in Xcode 4.3 and later. It's documented both in the LLVM docs and in Apple's guides to using properties and working with ARC.
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