问题一：
"Plugin caching_sha2_password could not be loaded: 找不到指定的模块。 Library path is 'caching_sha2_password.dll' QMYSQL: Unable to connect"
解决方法：
alter user 'root'@'localhost' identified with mysql_native_password by 'root';
问题二：
ERROR 1524 (HY000): Plugin ‘mysql_native_password‘ is not loaded
解决方法：
修改my.ini文件
)
)
