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因MySQL官方似乎未提供64-bit版本的.msi文件下载，所以只好使用.zip包安装64-bit版本。另外，从5.7.18版本开始，.zip包中不再包含样例配置文件my-default.ini（本文末尾提供my-default.ini完整代码，提取自5.7.17版本）。
下载
MySQL 官方下载地址：https://dev.mysql.com/downloads/mysql/
MySQL workbench官方下载地址：https://dev.mysql.com/downloads/workbench/
安装
本例中：
安装文件：mysql-5.7.20-winx64.zip
安装路径：D:\develop\mysql-5.7.20-winx64
密码：'new password'
解压文件
将mysql-5.7.20-winx64.zip解压至D:\develop\mysql-5.7.20-winx64
修改my-default.ini并重命名为my.ini
在文件末尾添加：
basedir="D:\develop\mysql-5.7.20-winx64"
datadir="D:\develop\mysql-5.7.20-winx64\data"
character-set-server=utf8
命令行安装
添加环境变量，将解压缩的安装文件中，bin目录添加至Path
初始化数据库:
以管理员权限打开
cmd，切换至bin目录下（非必需，但为了减少异常，建议这么做）执行
mysqld --initialize --user=mysql --console，该命令初始化数据库，生成临时密码，打印信息-
记录控制台信息最后一行，打印的临时密码
log2018-02-02T05:57:23.355219Z 1 [Note] A temporary password is generated for root@localhost: Yi;z%D:fl4Ds
将mysql加入系统服务，mysqld --install mysql
启动mysql，net start mysql
登陆并修改密码
登陆
mysql -u root -p
Enter password: Yi;z%D:fl4Ds
修改密码
ALTER USER 'root'@'localhost' IDENTIFIED BY 'MyNewPass';
flush privileges;
附件
my-default.ini文件：
# For advice on how to change settings please see
# http://dev.mysql.com/doc/refman/5.6/en/server-configuration-defaults.html
# *** DO NOT EDIT THIS FILE. It's a template which will be copied to the
# *** default location during install, and will be replaced if you
# *** upgrade to a newer version of MySQL.
[mysqld]
# Remove leading # and set to the amount of RAM for the most important data
# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.
# innodb_buffer_pool_size = 128M
# Remove leading # to turn on a very important data integrity option: logging
# changes to the binary log between backups.
# log_bin
# These are commonly set, remove the # and set as required.
# basedir = .....
# datadir = .....
# port = .....
# server_id = .....
# Remove leading # to set options mainly useful for reporting servers.
# The server defaults are faster for transactions and fast SELECTs.
# Adjust sizes as needed, experiment to find the optimal values.
# join_buffer_size = 128M
# sort_buffer_size = 2M
# read_rnd_buffer_size = 2M
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
