Xcode代码片段
~/Library/Developer/Xcode/UserData/CodeSnippets
Xcode模拟器
~/Library/Developer/CoreSimulator/Profiles/Runtimes/
DerivedData文件
~/Library/Developer/Xcode/DerivedData
Plug插件路径
~/Library/Application Support/Developer/Shared/Xcode/Plug-ins
原文：http://www.cnblogs.com/superbobo/p/5939460.html