distinct

\n DISTINCT 方法用于返回唯一不同的值 。\n\n例如数据库表中有以下数据\n\n![](https://box.kancloud.cn/2016-05-24_574461b9cba36.jpg)\n\n以下代码会返回`user_login`字段不同的数据\n~~~\nDb::table('think_user')->distinct(true)->field('user_login')->select();\n~~~\n\n生成的SQL语句是: `SELECT DISTINCT user_login FROM think_user`\n\n返回以下数组\n~~~\narray(2) {\n [0] => array(1) {\n ["user_login"] => string(7) "chunice"\n }\n [1] => array(1) {\n ["user_login"] => string(5) "admin"\n }\n}\n~~~\n\ndistinct方法的参数是一个布尔值。\n