要将默认值设置为UTF-8，您要将以下内容添加到my.cnf

To set the default to UTF-8, you want to add the following to my.cnf

[client]
default-character-set=utf8

[mysql]
default-character-set=utf8


[mysqld]
collation-server = utf8_unicode_ci
init-connect='SET NAMES utf8'
character-set-server = utf8

如果你想改变一个现有的数据库的字符集，让我知道...你的问题没有直接指定，所以我不知道这是你想做的。

If you want to change the character set for an existing DB, let me know... your question didn't specify it directly so I am not sure if that's what you want to do.