請進入終端機(Terminal)輸入以下指令defaults write com.apple.dock no-glass -boolean NO再輸入重啟Dockkillall Dock應該就可以恢復了若要在切換成2Ddefaults write com.apple.dock no-glass -boolean YES再輸入重啟Dockkillall Dock即可希望能幫到您~