客戶端連接mysql8.0報plugin caching_sha2_password could not be loaded錯誤解決辦法：
解決辦法：
window cmd命令窗口輸入：mysql -u root -p
ALTER USER 'root'@'localhost' IDENTIFIED BY 'password' PASSWORD EXPIRE NEVER; #修改密碼失效規則
ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'password'; #修改密碼加密規則
FLUSH PRIVILEGES; #刷新一下權限
alter user 'root'@'localhost' identified by 'yourpassword';#重置密碼，yourpassword就是你需要重新設置的密碼