数据名带了个中划线，删库时报语法错误：
mysql> drop database apigateway-ai;
ERROR 1064 (42000): 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 ‘apigateway-ai‘ at line 1
加个单引号，再执行删除命令，仍然不行：
mysql> drop database ‘apigateway-ai‘;
ERROR 1064 (42000): 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 ‘‘apigateway-ai‘‘ at line 1
解决：使用反撇号框选数据库名，可以完成命令执行：
mysql> drop database `apigateway-ai`;
Query OK, 77 rows affected (2.38 sec)
结束。