flight学习笔记

Flight::db()-> getOne("select 1");

返回结果：1

Flight::db()-> getRow ("select 1, 2 from a limit 1");

返回结果：array(“1","2")

Flight::db()-> getCol ("select 1 from a limit 2");

返回结果：array(“1","1")

Flight::db()-> getAll("select 1, 2, from a limit 2");

返回结果：array(array(“1","2"), array(“1","2"));