XML UsageifOn this pageifTag<if test=""> </if>Usage使用动态 SQL 最常见情景是根据条件包含 where 子句的一部分。比如:db.Query(` select * from blog where state = 'active' <if test="len(title) > 0"> and title like #{title} </if>`, batis.Param("title", "tom's blog"))