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，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/datadatadir=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');