1.官网下载文件

    2.解压放到你要安装的目录下

    3.cmd 管理员模式打开，切换到bin目录下

    2. D:\mysql-8.0.19-winx64\bin>mysqld --install
    3. Service successfully installed.
    5. D:\mysql-8.0.19-winx64\bin>

      1. mysqld --defaults-file="D:\mysql-8.0.20-winx64\bin\my.ini" --console --skip-grant-tables
    1. D:\mysql-8.0.20-winx64\bin>mysqld --initialize  >>>会在data 路径下.err文件下生成随机密码
    3. D:\mysql-8.0.20-winx64\bin>mysqld --install
    4. Service successfully installed.
    6. D:\mysql-8.0.20-winx64\bin>net start mysql
    7. MySQL 服务正在启动 .
    8. MySQL 服务已经启动成功。
    11. D:\mysql-8.0.20-winx64\bin>mysql -u root -p
    12. Enter password: ************  》》》在.err文件下生成随机密码中zhao找
    13. Welcome to the MySQL monitor.  Commands end with ; or \g.
    14. Your MySQL connection id is 8
    15. Server version: 8.0.20
    17. Copyright (c) 2000, 2020, Oracle and/or its affiliates. All rights reserved.
    19. Oracle is a registered trademark of Oracle Corporation and/or its
    20. affiliates. Other names may be trademarks of their respective
    21. owners.
    23. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
    25. mysql>
    26. >>>>修改密码，注意‘：’
    27. mysql> alter user user() identified by "你的密码";》》》我的是123456
    28. Query OK, 0 rows affected (0.06 sec)
    30. mysql>