1.在终端下:mysql -V. 

[root@localhost bin]# mysql -V;mysql  Ver 14.14 Distrib 5.6.21, for Linux (x86_64) using  EditLine wrapper[root@localhost bin]# mysql -v;ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO)

注意，这里是大写字母V~

2.在MySQL中

mysql> status;--------------mysql  Ver 14.14 Distrib 5.6.35, for Win64 (x86_64)Connection id:          2Current database:Current user:           ODBC@localhostSSL:                    Not in useUsing delimiter:        ;Server version:         5.6.35-log MySQL Community Server (GPL)Protocol version:       10Connection:             localhost via TCP/IPServer characterset:    latin1Db     characterset:    latin1Client characterset:    gbkConn.  characterset:    gbkTCP port:               3306Uptime:                 3 hours 11 min 13 secThreads: 1  Questions: 7  Slow queries: 0  Opens: 67  Flush tables: 1  Open tables: 60  Queries per second avg: 0.000--------------

3.使用MySQL的函数

mysql> select version();+------------+| version()  |+------------+| 5.6.35-log |+------------+1 row in set (4.25 sec)