在数据库 down 运行 SQL 查询: ALTER TABLE `down_down` CONVERT TO CHARACTER SET binary; 执行后出这个 错误 SQL 查询: ALTER TABLE `down_down` CONVERT TO CHARACTER SET binary; MySQL 返回: #1064 - You have an error in your SQL syntax. Check the manual that corresponds to your MySQL server version for the right syntax to use near 'CONVERT TO CHARACTER SET binary' at line 1 我对这东西是一点不懂的,迷惑中...