1.在mysql默認目錄，新建my.ini 配制檔案(也可網路上找)，檔案格式如下：
[client]
port=3306
default-character-set=UTF8MB4
[mysqld]
port=3306
character_set_server=UTF8MB4
basedir="E:\mysql-8.0.20-winx64"
datadir="E:\mysql-8.0.20-winx64\data"
max_connections=200
default-storage-engine=INNODB
#跳過輸密碼的階段
#skip-grant-tables
#Server="E:\mysql-8.0.20-winx64\bin\mysqld.exe"
2、cmd進入命令列，并進入相應的mysql解壓bin目錄E:\mysql-8.0.20-winx64\bin>（這個目錄是我自己的，你們的目錄別問我）執行如下命令
PS E:\mysql-8.0.20-winx64\bin> mysqld -install
//初始化，默認生成data檔案目錄[color=#FF6600]
PS E:\mysql-8.0.20-winx64\bin> mysqld --initialize -user=mysql
PS E:\mysql-8.0.20-winx64\bin> net start mysql
MySQL 服務正在啟動 .
MySQL 服務已經啟動成功。
PS E:\mysql-8.0.20-winx64\bin> mysql -u root -p
Enter password: ************（此處的密碼是data檔案的日志密碼root@localhost: ********）
//顯示登錄成功
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 8.0.20
Copyright (c) 2000, 2020, 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.
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