Mac OS 下ＭySQL启动或开机自动运行失败

错误信息：Warning:The /usr/local/mysql/data directory is not owned by the ‘mysql’ or ‘_mysql’
错误原因：某种情况下导致/usr/local/mysql/data的宿主发生了改变
解决方法：运行“sudo chown -R mysql /usr/local/mysql/data”命令即可