sql("finedb","SELECT realname FROM PUBLIC.FINE_USER
where username like '%"+$参数名称+"%'",1,1)
单元格
if(find("A100",c2)>0,"有值","没有值")
模糊
where 1=1
${if(len(cs2)=0,"","and a.表中字段名称 like '%"+ cs2 + "%'")}

精确
${if(len(参数名称)=0,"","and 表中的字段 in('"+ 参数名称 + "')")}