sudo vi /etc/my.cnf  
bind-address = 127.0.0.1 

sudo vi /etc/my.cnf 
在[mysqld]下面加入一行 
character_set_server = utf8 
在[mysql]下面加入一行 
default-character-set = utf8 
sudo /usr/local/mysql/support-files/mysql.server restart 
mysql -uroot -p1 
mysql> status 
Server characterset:    utf8 
Db     characterset:    utf8 
Client characterset:    utf8 
Conn.  characterset:    utf8 
mysql> show variables like 'character_set%'; 
+--------------------------+----------------------------------+ 
| Variable_name            | Value                            | 
+--------------------------+----------------------------------+ 
| character_set_client     | utf8                             | 
| character_set_connection | utf8                             | 
| character_set_database   | utf8                             | 
| character_set_filesystem | binary                           | 
| character_set_results    | utf8                             | 
| character_set_server     | utf8                             | 
| character_set_system     | utf8                             | 
| character_sets_dir       | /usr/local/mysql/share/charsets/ | 
+--------------------------+----------------------------------+ 
8 rows in set (0.00 sec) 

sudo vi /etc/my.cnf 
找到[mysql] 
[mysql] 
#no-auto-rehash 
auto-rehash 
sudo /usr/local/mysql/support-files/mysql.server restart 
mysql -uroot -p1 
use mysql 
必須先use一個庫，按tab鍵才能自動提示。 

說明：之前寫的文章太長，有重復，違反DRY，現(xiàn)在整理出來。