code: function (cell) {
              try {
                  var start = domUtils.getXY(cell).x + cell.offsetWidth,
                      rows = this.table.rows, cells , returns = [];
                  for (var i = 0; i < this.rowsNum; i++) {
                      cells = rows[i].cells;
                      for (var j = 0, tmpCell; tmpCell = cells[j++];) {
                          var tmpStart = domUtils.getXY(tmpCell).x;
                          if (tmpStart > start) break;
                          if (tmpStart == start && tmpCell.colSpan == 1) {
                              returns.push(tmpCell);
                              break;
                          }
                      }
                  }
                  return returns;
              } catch (e) {
                  showError(e);
              }
          }
docs: 获取跟当前单元格的右边竖线为左边的所有未合并单元格