我一直在学习如何为unicode设置mysql服务器/数据库的教程，希望将默认字符集设置为 utf8mb4 ，以及 utf8mb4_unicode_ci 与教程中指定的内容一样，我在位于c:\programdata\mysql\mysql server 5.7的.ini文件中应用了以下设置：

[client]
    default-character-set = utf8mb4

    [mysql]
    default-character-set = utf8mb4

    [mysqld]
    character-set-client-handshake = FALSE
    character-set-server = utf8mb4
    collation-server = utf8mb4_unicode_ci

在mysql workbench中运行此查询时：

SHOW VARIABLES WHERE Variable_name LIKE 'character\_set\_%' OR Variable_name LIKE 'collation%'

它没有显示我所期望的系统变量，所以最初我认为我配置错误了服务器：
mysql工作台输出

character_set_client       utf8
character_set_connection   utf8
character_set_database     utf8mb4
character_set_filesystem   binary
character_set_results      utf8
character_set_server       utf8mb4
character_set_system       utf8
collation_connection       utf8_general_ci
collation_database         utf8mb4_unicode_ci
collation_server           utf8mb4_unicode_ci

但是，在使用本机mysql命令行客户端时，我看到了我所期望的：

+--------------------------+--------------------+
| Variable_name            | Value              |
+--------------------------+--------------------+
| character_set_client     | utf8mb4            |
| character_set_connection | utf8mb4            |
| character_set_database   | utf8mb4            |
| character_set_filesystem | binary             |
| character_set_results    | utf8mb4            |
| character_set_server     | utf8mb4            |
| character_set_system     | utf8               |
| collation_connection     | utf8mb4_unicode_ci |
| collation_database       | utf8mb4_unicode_ci |
| collation_server         | utf8mb4_unicode_ci |
+--------------------------+--------------------+

为什么mysql工作台不尊重配置设置，就像命令行客户机那样？
mysql:windows/5.7.21
mysql工作台：windows/6.3.10