(1)当我点击已上线,sql查出 button is not null,点击未上线,sql查出 button is null,两个都不点 就什么也不用限定,
(2)按钮组的数据字典怎么设置
where
${if(len(a)=0,"",if(a="已上线","button is not null","button is null"))}
字典实际、显示一样