解决办法：使用Node.js访问MySQL8的时候会报错ER_NOT_SUPPORTED_AUTH_MODE

Error: ER_NOT_SUPPORTED_AUTH_MODE: 
Client does not support authentication protocol requested by server; 
consider upgrading MySQL client
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解决以上问题的办法：

mysql -u root -p
输入您的密码
use mysql;
alter user 'root'@'localhost' identified with mysql_native_password by '您的密码';
flush privileges;
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