Xcode插件路径
~/Library/Application Support/Developer/Shared/Xcode/Plug-ins
Xcode缓存路径
~/Library/Developer/Xcode/DerivedData
Xcode图片压缩工具路径
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/pngcrush
Xcode代码片段路径
~/Library/Developer/Xcode/UserData/CodeSnippets
Xcode7.0的symbolicatecrash路径
/Applications/Xcode.app/Contents/SharedFrameworks/DVTFoundation.framework/Versions/A/Resources/symbolicatecrash
（由于Xcode7之后，symbolicatecrash路径做了修改，如果要查询Xcode7前的路径可以使用查询命令：
find /Applications/Xcode.app -name symbolicatecrash -type f）