/**
* 返回INSERT，UPDATE 或 DELETE 查询所影响的记录行数
*
* @param \MongoDB\Driver\WriteResult $handle
* @param int $type 执行的类型1:insert、2:update、3:delete
*
* @return int
*/
public function affectedRows($handle, $type)
{
switch ($type) {
case 1:
return $handle->getInsertedCount();
break;
case 2:
return $handle->getModifiedCount();
break;
case 3:
return $handle->getDeletedCount();
break;
default:
return false;
}
}
