hasTable('hydraulic')) { $table = $this->table('hydraulic'); $table ->addColumn('imei', 'string', ['limit' => 32,'null' => true,'signed' => true,'comment' => 'imei号',]) ->addColumn('sim_card', 'string', ['limit' => 32,'null' => true,'signed' => true,'comment' => 'sim卡号',]) ->addColumn('check_time', 'integer', ['limit' => MysqlAdapter::INT_REGULAR,'null' => true,'default' => null,'signed' => true,'comment' => '校验时间',]) ->addColumn('effective_period', 'string', ['limit' => 8,'null' => true,'signed' => true,'comment' => '有效周期',]) ->addColumn('effective_time', 'string', ['limit' => 32,'null' => true,'signed' => true,'comment' => '有效截止时间',]) ->update(); } } }