//参考
    private function test(){
        $ret_data = [];
        //新增表
        $ret_data[0][0] = 'tb_add';
        $ret_data[0][1] = $this->tb_prefix.'test';
        $ret_data[0][2] = ,,,INFO
        CREATE TABLE `zf_test` (
            `id` int(11) unsigned NOT NULL AUTO_INCREMENT,
            `name` varchar(255) DEFAULT NULL,
            `content` varchar(255) DEFAULT NULL,
            `token` varchar(255) DEFAULT NULL,
            PRIMARY KEY (`id`)
          ) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;
INFO;
        $ret_data[0][2] = str_replace('zf_test',$this->tb_prefix.'test',$ret_data[0][2]);

        // 新增表字段 tb_field_add($sql_is,$sql_add)
        $ret_data[1] = [
            'tb_field_add',
            "show columns from ".$this->tb_prefix."test like 'append'",
            "alter table ".$this->tb_prefix."test add append varchar(50) not null"
        ];
        //修改表字段 tb_field_name_edit($sql_is,$sql_add)
        $ret_data[2] = [ 
            'tb_field_edit',
            "show columns from ".$this->tb_prefix."test like 'name'",
            "alter table ".$this->tb_prefix."test MODIFY  name  varchar(50) NOT NULL "
        ];
        //字段是否存在
        // tb_field_is($sql_is)
        //show columns from ".$this->tb_prefix."test like 'name'
        //表字段删除
        // tb_field_del($sql_is,$sql_add)
        $ret_data[3] = [ 
            'tb_field_del',
            "show columns from ".$this->tb_prefix."test like 'name'",
            "alter table ".$this->tb_prefix."test DROP  name"
        ];
        //数据的增
        $ret_data[3] = [ 
            'tb_post_add',
            $this->tb_prefix.'test',
            ['content'=>1,'token'=>date("Y-m-d",time()),'append'=>11],
            true    //默认允许重复
        ];
        $ret_data[4] = [ 
            'tb_post_add',
            $this->tb_prefix.'test',
            ['content'=>22222,'token'=>date("Y-m-d",time()),'append'=>11],
            false,  //是否允许重复
            ['content'=>22222], //判断条件
        ];
        // 改
        $ret_data[5] = [ 
            'tb_post_edit',
            $this->tb_prefix.'test',
            ['content'=>1],
            ['content'=>'修改啦','token'=>date("Y-m-d",time()),'append'=>11],
        ];
        // 删
        $ret_data[6] = [ 
            'tb_post_del',
            $this->tb_prefix.'test',
            ['id'=>7],
        ];
        return $ret_data;
    }