(editor)
| 792 | |
| 793 | var length = 20; // 缓存的最大长度 |
| 794 | function _getRedoList(editor) { |
| 795 | if (editor._redoList == null) { |
| 796 | editor._redoList = []; |
| 797 | } |
| 798 | return editor._redoList; |
| 799 | } |
| 800 | function _getUndoList(editor) { |
| 801 | if (editor._undoList == null) { |
| 802 | editor._undoList = []; |