https://dev.mysql.com/downloads/mysql/

# These are commonly set, remove the # and set as required.
# basedir = .....
# datadir = .....
# port = .....
# server_id = .....

C:\Users\donald>cd D:\tools\developer\MySQL\mysql-5.7.17-winx64\bin

C:\Users\donald>d:

D:\tools\developer\MySQL\mysql-5.7.17-winx64\bin>mysqld -install
Service successfully installed. //成功安装服务

D:\tools\developer\MySQL\mysql-5.7.17-winx64\bin>mysqld --initialize
D:\tools\developer\MySQL\mysql-5.7.17-winx64\bin>

D:\tools\developer\MySQL\mysql-5.7.17-winx64\bin>mysqld.exe -nt --skip-grant-tables

C:\Users\donald>mysql -u root
 Welcome to the MySQL monitor. Commands end with ; or \g.
 Your MySQL connection id is 3
 Server version: 5.7.17 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> use mysql
 Database changed
 mysql> update user set authtication_string=Password('admin') where user="root";
 //这时候会提示修改成功等，或者waring 什么的。
 mysql>flush privileges;
 0 rows affected (0.01 sec)

C:\Users\donald>net start mysql

C:\Users\donald>mysql -u root -p
//输入admin