1. 下载MySQL压缩版：

官网地址：https://dev.mysql.com/downloads/mysql/

2. 解压：

3. 新建：my.ini空白文件：

# 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.

[client]

default-character-set = utf8mb4

[mysql]

default-character-set = utf8mb4

[mysqld]

character-set-client-handshake = FALSE

character-set-server = utf8mb4

collation-server = utf8mb4_bin

init_connect='SET NAMES utf8mb4'

# 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 = D:\MySQL

datadir = D:\MySQL\data

port = 3306

# 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 = 16M

read_rnd_buffer_size = 16M

sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES

4. 生成data文件：

bin文件下：cmd命令

mysqld --initialize-insecure --user=mysql

5. 安装mysql服务，绑定my.ini文件：

mysqld --install "MySql80" --defaults-file="d:\Work\MySQL\mysql-8.0.22-winx64/my.ini"

6. 开启服务：

或者：bin文件下 > 执行cmd

net start MySql80

7. 设置密码：

bin文件下 > 执行cmd

mysql -u root -p

这时密码为空，不需要填写，直接回车：

在8.0之后的版本，修改root用户密码的命令是：

ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '你的密码';

之前的版本是：

update mysql.user set authentication_string=password("你的密码") where user="root";

退出：

exit;