摘要：
1、SELECT * from tbLabelResRelation WHERE lId in(32,18,27,19) order by FIND_IN_SET(lId ,'32,18,27,19')；2、SELECT * from tbLabelResRelation WHERE lId in(32,18,27,19) order by substring_index('32,18,27,19',lId,1);3、SELECT lCourseId FROM tbNewSchoolCourse35 WHERE lCourseId IN ('2' 阅读全文
