Mysql GROUP BY 字段拼接select *,group_concat(file_name) from activity_scheme_files GROUP BY activity_scheme_id 版权声明：本文为zheyijieyou原创文章，遵循CC 4.0 BY-SA版权协议，转载请附上原文出处链接和本声明。原文链接：https://blog.csdn.net/zheyijieyou/article/details/107495178
