Minidao FreeMarker 数组
DaoFormat.getInStrs - 国内版 Bing
https://cn.bing.com/search?FORM=U227DF&PC=U227&q=DaoFormat.getInStrs
Minidao+教程 - 1.1 - 百度文库
https://wenku.baidu.com/view/2af686dc68dc5022aaea998fcc22bcd126ff4229.html
Minidao 教程_V1.1
http://minidao.mydoc.io/?t=300146
Minidao 教程_V1.1
http://minidao.mydoc.io/?t=300169
Minidao 教程_V1.1
http://minidao.mydoc.io/?t=293674
freemarker得到数组的长度 - nickTimer - 博客园
https://www.cnblogs.com/toSeeMyDream/p/4728143.html
FreeMarker判断变量或数组是否为空或不存在 - 简书
https://www.jianshu.com/p/58d1ed53da98
freemarker之数组 - jrrfgj的博客
https://blog.csdn.net/jrrfgj/article/details/86736014
INNER JOIN t_s_depart ON user_master.departid = t_s_depart.id
<#if ( deptIdList )?? && deptIdList?size gt 0 >
AND t_s_depart.id IN ( ${DaoFormat.getInStrs ( deptIdList )} )
</#if>