MySQL 5.7.21 installation and configuration method graphic tutorial (window)

[mysql] 
# Set the default character set of the mysql client to default-character-set=utf8 
[mysqld] 
#Set port 3306 port = 3306 
# Set the installation directory of mysql to basedir=F:\mysql-5.7.21-winx64 
# Set the storage directory of mysql database data datadir=F:\mysql-5.7.21-winx64\data 
# Maximum number of connections allowed max_connections=200 
# The default character set used by the server is the 8-bit latin1 character set character-set-server=utf8 
# The default storage engine that will be used when creating a new table default-storage-engine=INNODB 

F:\mysql-5.7.21-winx64\bin>mysqld -install 
Service successfully installed.

C:\Windows\system32>net start mysql 
The MySQL service is starting. 
The MySQL service has been started successfully.

C:\Windows\system32>mysql -uroot -p 
Enter password: 
Welcome to the MySQL monitor. Commands end with ; or \g. 
Your MySQL connection id is 2 
Server version: 5.7.21 MySQL Community Server (GPL) 
 
Copyright (c) 2000, 2018, 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>

mysql> 
mysql> 
mysql> show databases; 
+--------------------+ 
| Database | 
+--------------------+ 
| information_schema | 
|mysql | 
| performance_schema | 
|sys| 
+--------------------+ 
4 rows in set (0.00 sec) 
 
mysql> use mysql; 
Database changed 
mysql> update user set authentication_string=password("new password") where User="root"; 
Query OK, 1 row affected, 1 warning (0.00 sec) 
Rows matched: 1 Changed: 1 Warnings: 1 
mysql> 
mysql> FLUSH PRIVILEGES;