1.卸载删除 xcode
1.1.删除软件和用户文件
sudo rm -rf /Applications/Xcode.app
rm -rf ~/Library/Preferences/com.apple.dt.Xcode.plist
rm -rf ~/Library/Caches/com.apple.dt.Xcode
rm -rf ~/Library/Application\ Support/Xcode
1.2.删除开发者文件
rm -rf ~/Library/Developer/Xcode
rm -rf ~/Library/Developer/CoreSimulator
rm -rf ~/Library/Developer/XCPGDevices
1.3.卸载开发工具
sudo /Developer/Library/uninstall-devtools –mode=all