code: function insert_multi(array $rows, $isIgnore = false){
          if($this->notORM->freeze){
              return false;
          }
          if(!$rows){
              return 0;
          }
          $data       = reset($rows);
          $parameters = array();
          if($data instanceof NotORM_Result){
              $parameters = $data->parameters; //! other parameters
              $data       = (string) $data;
          }elseif($data instanceof Traversable){
              $data = iterator_to_array($data);
          }
          $insert = $data;
          if(is_array($data)){
              $values = array();
              foreach($rows as $value){
                  if($value instanceof Traversable){
                      $value = iterator_to_array($value);
                  }
                  $values[] = $this->quote($value);
                  foreach($value as $val){
                      if($val instanceof NotORM_Literal && $val->parameters){
                          $parameters = array_merge($parameters, $val->parameters);
                      }
                  }
              }
  
              $quoteChar = $this->getQuoteChar();
  
              //! driver specific extended insert
              $insert = ($data || $this->notORM->driver == "mysql")
                  ? "({$quoteChar}" . implode("{$quoteChar}, {$quoteChar}", array_keys($data)) . "{$quoteChar}) VALUES " . implode(", ", $values) 
                  : "DEFAULT VALUES";
          }
  
          // @dogstar 20181208
          $ignoreSql = $isIgnore ? 'IGNORE' : '';
  
          // requires empty $this->parameters
          $return = $this->query("INSERT $ignoreSql INTO $this->table $insert", $parameters);
          if(!$return){
              return false;
          }
          $this->rows = null;
          return $return->rowCount();
      }
docs: Shortcut for call_user_func_array(array($this, 'insert'), $rows)
  
  @param array $rows 待批量添加的数据
  @param boolean $isIgnore 是否在插入时使用IGNORE
  
  @return int number of affected rows or false in case of an error