我使用的是Xcode 4.2.1 ,OS 5 lion 10.7 版本。 我想将目前的X代码从4.2.1降至4.2。 请指导我这样做。
预 收
你们可以同时在不同的名录中安装多个版本。 如果你想要删除一个版本,你就必须删除该目录/目录,并在该名录中重新插入你的目标版本。
在4.2和4.2.1中,没有多少差别。
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