MAC 下启动MySQL 后立即关闭,Can't connect

我最先的问题是用navicat 连接mysql时,报

       Can't connect to MySQL server on '127.0.0.1' (61)

然后在终端运行下图时

报

Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)'

然后就网上各种找

然后试着在偏好设置里启动MySQL

发现,在系统偏好设置里mysql 点击了启动,马上又变红了

然后网上有找,

最后找到,在终端启动

命令行:         sudo  /usr/local/mysql/support-files/mysql.server start

结果报错,上图.

         ERROR! The server quit without updating PID file (/usr/local/mysql/data/*****imac.local.pid).

然后继续找,发现时权限不够,就先给权限,如下图

最后再运行  sudo  /usr/local/mysql/support-files/mysql.server start

然后就能链接了