# 解析编辑的内容

                   moveToBookmark:function (bookmark) {
                var start = bookmark.id ? this.document.getElementById(bookmark.start) : bookmark.start,
                    end = bookmark.end && bookmark.id ? this.document.getElementById(bookmark.end) : bookmark.end;
                this.setStartBefore(start);
                domUtils.remove(start);
                if (end) {
                    this.setEndBefore(end);
                    domUtils.remove(end);
                } else {
                    this.collapse(true);
                }
                return this;
            },