一、安装：
https://dev.mysql.com/doc/refman/5.6/en/osx-installation-pkg.html 到这个网址下载，下载之后点击安装（傻瓜式安装），
为什么我要写这篇博客记录下来呢？重点不是它的安装，而是我遇到了一些问题，
二、配置
打开终端
打开配置
输入：.bash_profile
输入：export PATH=${PATH}:/usr/local/mysql/bin 保存
然后，在系统偏好设置中打开MySql ，在终端进行登录的时候会出现
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO) 解决这个问题的办法
1、打开终端输入/usr/local/mysql/bin/mysqld_safe –skip-grant-tables
出现上边的结果，然后不要关闭当前的终端，重新打开一个 ，
2、输入/usr/local/mysql/bin/mysql 会展示出
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 37
Server version: 5.7.13 MySQL Community Server (GPL)
Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> 3、打开use mysql;
结果：
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed4、然后更改root的密码
mysql> update user set authentication_string=password('root') where Host='localhost' and User='root';
5、退出保存，重新启动服务 搞定
