标签：from rom cat 之间 sel class and 种子 span
$sql = "select * from goods where goods_name in(‘海尔‘,‘海尔x1‘) "; //in 输出goods_name等于海尔和海尔x1的字段
$sql = "select * from goods where price between 4000 and 5000"; //between and 输出price4000到5000之间的值
$sql = "select * from goods where cat_id is null"; //is 或者 is not null 为null值 不可写成(cat_id=null)是错的
标签：from rom cat 之间 sel class and 种子 span
原文地址：https://www.cnblogs.com/xm666/p/11197941.html
