phpexcel5 问题 undefined $xfindex
if (isset($this->_mapCellXfIndex[$xfIndex])) {
$this->_phpSheet->getColumnDimensionByColumn($i)->setXfIndex($this->_mapCellXfIndex[$xfIndex]);
} else {
$this->_phpSheet->getColumnDimensionByColumn($i)->setXfIndex(current($this->_mapCellXfIndex));
}