weixin_43493559的博客

把你连接上

文章目录一、注意事项二、用法一、注意事项中文：之间包含关系，上限跟下线都包含。二、用法select * from grade where coursenum='GE002' and studentgrade BETWEEN 80 and 90 //这里的BETWEEN 包含关系String selSql = "select * from grade where coursenum=? and and studentgrade BETWEEN ? and ?";...