快捷鍵
1:編輯多范圍代碼：
control+shift +Click(點(diǎn)擊) 或者 control+shift+Up,control+shift+Down,control+shift+left,control+right
2:同一變量同時(shí)修改快捷鍵：control+command+e(需要把變量自動(dòng)選中定位到)
3:復(fù)制/刪除行
/Applications/Xcode.app/Contents/Frameworks/IDEKit.framework/Resources/IDETextKeyBindingSet.plist
在Deletions下面增加：Delete Current Line黔攒，值為：
deleteToBeginningOfLine:, moveToEndOfLine:, deleteToBeginningOfLine:, deleteBackward:, moveDown:, moveToBeginningOfLine:
在Insertions and Indentations下面增加：Duplicate Current Line，值為：
selectLine:, copy:, moveToEndOfLine:, insertNewline:, paste:, deleteBackward:
然后重啟Xcode穆趴，打開設(shè)置爆班，Key Bindings祭芦，找到“Delete Current Line”和”Duplicate Current Line”這兩項(xiàng)宝剖，設(shè)置為自己想要的快捷鍵乏冀。
我設(shè)置的值是：command+delete（刪除行）
option+s(復(fù)制行)
3:移動(dòng)行
找到Xcode中的自帶的配置文件：
/Applications/Xcode.app/Contents/Frameworks/IDEKit.framework/Versions/A/
Resources/IDETextKeyBindingSet.plist
用文本編輯IDETextKeyBindingSet.plist桅锄，并添加以下代碼：
<key>GDI Direction</key>
<dict>
<key>GDI Duplicate Current Line</key>
<string>selectLine:, copy:, moveToEndOfLine:,insertNewline:, paste:, deleteBackward:</string>
<key>GDI Delete Current Line</key>
<string>moveToEndOfLine:, deleteToBeginningOfLine:,deleteBackward:,moveDown:,moveToEndOfLine:</string>
<key>GDI Move Current Line Up</key>
<string>selectLine:, cut:, moveUp:, moveToBeginningOfLine:, insertNewLine:, paste:, moveBackward:</string>
<key>GDI Move Current Line Down</key>
<string>selectLine:, cut:, moveDown:, moveToBeginningOfLine:, insertNewLine:, paste:, moveBackward:</string>
<key>GDI Insert Line Above</key>
<string>moveUp:, moveToEndOfLine:, insertNewline:</string>
<key>GDI Insert Line Below</key>
<string>moveToEndOfLine:, insertNewline:</string>
</dict>
重啟Xcode劫哼，在Xcode菜單中叮趴，打開Preferences，選中Key Binding权烧，在右上方搜索GDI,設(shè)置對(duì)應(yīng)快捷鍵
我設(shè)置的是 option+command+o(上移行)眯亦， option+command+o(下移行)，
