http://stackoverflow.com/questions/551383/xcode-duplicate-delete-line
http://stackoverflow.com/questions/10266170/xcode-4-duplicate-line
适用于最新的Xcode 4.5.1
运行:
sudo chmod 666 /Applications/Xcode.app/Contents/Frameworks/IDEKit.framework/Resources/IDETextKeyBindingSet.plist
然后打开/Applications/Xcode.app/Contents/Frameworks/IDEKit.framework/Resources/IDETextKeyBindingSet.plist,在Deletions下面增加:Delete Current Line,值为:
deleteToBeginningOfLine:, moveToEndOfLine:, deleteToBeginningOfLine:, deleteBackward:, moveDown:, moveToBeginningOfLine:
在Insertions and Indentations下面增加:Duplicate Current Line,值为:
selectLine:, copy:, moveToEndOfLine:, insertNewline:, paste:, deleteBackward:
然后重启Xcode,打开设置,Key Bindings,找到“Delete Current Line”和”Duplicate Current Line”这两项,设置为自己想要的快捷键