Windows安装mysql5.7.17安装（mysql-5.7.17-winx64.zip）

1、解压mysql-5.7.17-winx64.zip到目录D:\Program Files\mysql-5.7.17-winx64

2、配置环境变量：

3、修改D:\Program Files\mysql-5.7.17-winx64目录下my-default.ini文件名称为my.ini，并配置basedir和datadir：

# For advice on how to change settings please see  
# http://dev.mysql.com/doc/refman/5.7/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 = .....  
#mysql所在的目录  
basedir=D:\Program Files\mysql-5.7.17-winx64   
#mysql所在的目录\data  
datadir=D:\Program Files\mysql-5.7.17-winx64\data  
  
# 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  

4、以管理员权限运行cmd，并进入到 D:\Program Files\mysql-5.7.17-winx64\bin 目录下，输入命令 ==> mysqld -install

5、初始化mysql命令==>  mysqld --initialize

6、安装成功后启动服务==>  net start mysql 

7、登陆服务使用命令 ==> mysql -u root -p，输入密码按enter就好。mysql5.7.17给了一个初始密码，在D:\Program Files\mysql-5.7.17-winx64\data\MSI.err文件中，或者在D:\Program Files\mysql-5.7.17-winx64目录下搜索*.err

8、修改密码为123456==>  set password for root@localhost=password('123456');