>[danger] where 字符串条件查询 + 一个 where ``` self::where('mobile', '<>', 1)->select(); ``` ``` SELECT * FROM `user` WHERE `mobile` <> 1 ``` + 多个 where ``` self::where('name', '张三')->where('mobile', '<>', 10086)->select(); ``` ~~~ SELECT * FROM `user` WHERE `name` = '张三' AND `mobile` <> 10086 ~~~