MySQL 8.0 以上的版本修改字符編碼和以往的版本都不同，舊版本都是只要設置一個default-character-set=utf8就可以了，網上大多數都是舊版本的教程。8.0以后的修改方法在my.ini文件中加入：
#帶中括號的是文件內自帶的標簽如果沒有可以自行加上
[client]
default-character-set=utf8
[mysql]
default-character-set=utf8
[mysqld]
character-set-client-handshake = FALSE
character-set-server = utf8
collation-server = utf8_unicode_ci
init_connect='SET NAMES utf8'
修改后重啟服務輸入show variables like "%char%";查看編碼是否成功如果和下面的一樣說明成功了，其他編碼類型在上面改換湯不換葯
mysql> show variables like "%char%";
+--------------------------+---------------------------------------------------------+
| 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 | C:\Program Files\MySQL\MySQL Server 8.0\share\charsets\ |
+--------------------------+---------------------------------------------------------+
8 rows in set, 1 warning (0.01 sec)