public function __construct($db_config = '', $table_name = '') { //4.13 增加M函数功能,无需model文件也能操作数据库了 $this->db_config = $db_config ? $db_config : $this->db_config; //4.13 $this->table_name = $table_name ? $table_name : $this->table_name; //4.13 if (!isset($this->db_config[$this->db_setting])) { $this->db_setting = 'default'; } $this->table_name = $this->db_config[$this->db_setting]['tablepre'] . $this->table_name; $this->db_tablepre = $this->db_config[$this->db_setting]['tablepre']; $this->db = db_factory::get_instance2($this->db_config)->get_database($this->db_setting); // }