[mysqld]
# 設(shè)置3306端口
port=3306
# 設(shè)置mysql的安裝目錄
basedir=D:\\MySQL\\mysql-8.0.20-winx64 # 此處為mysql的解壓縮路徑
# 設(shè)置mysql數(shù)據(jù)庫(kù)的數(shù)據(jù)的存放目錄
datadir=D:\\MySQL\\mysql-8.0.20-winx64\\Data # 此處同上，先不要在路徑中創(chuàng)建Data目錄，后面初始化時(shí)會(huì)自動(dòng)生成
# 允許最大連接數(shù)
max_connections=200
# 允許連接失敗的次數(shù)。這是為了防止有人從該主機(jī)試圖攻擊數(shù)據(jù)庫(kù)系統(tǒng)
max_connect_errors=10
# 服務(wù)端使用的字符集默認(rèn)為UTF8
character-set-server=utf8
# 創(chuàng)建新表時(shí)將使用的默認(rèn)存儲(chǔ)引擎
default-storage-engine=INNODB
# 默認(rèn)使用“mysql_native_password”插件認(rèn)證
default_authentication_plugin=mysql_native_password
[mysql]
# 設(shè)置mysql客戶端默認(rèn)字符集
default-character-set=utf8
[client]
# 設(shè)置mysql客戶端連接服務(wù)端時(shí)默認(rèn)使用的端口
port=3306
default-character-set=utf8

Microsoft Windows [Version 10.0.18363.815]
(c) 2019 Microsoft Corporation。保留所有權(quán)利。

C:\Windows\system32>D:

D:\>cd MySQL

D:\MySQL>cd mysql-8.0.20-winx64

D:\MySQL\mysql-8.0.20-winx64>cd bin

D:\MySQL\mysql-8.0.20-winx64\bin>

D:\MySQL\mysql-8.0.20-winx64\bin>mysqld --initialize --console
2020-05-10T11:26:21.895908Z 0 [System] [MY-013169] [Server] D:\MySQL\mysql-8.0.20-winx64\bin\mysqld.exe (mysqld 8.0.20) initializing of server in progress as process 9764
2020-05-10T11:26:21.897278Z 0 [Warning] [MY-013242] [Server] --character-set-server: 'utf8' is currently an alias for the character set UTF8MB3, but will be an alias for UTF8MB4 in a future release. 
Please consider using UTF8MB4 in order to be unambiguous.
2020-05-10T11:26:21.915225Z 1 [System] [MY-013576] [InnoDB] InnoDB initialization has started.
2020-05-10T11:26:22.619057Z 1 [System] [MY-013577] [InnoDB] InnoDB initialization has ended.
2020-05-10T11:26:24.265774Z 6 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: 9Zh31zk-@mof

D:\MySQL\mysql-8.0.20-winx64\bin>mysqld --install
Service successfully installed.

D:\MySQL\mysql-8.0.20-winx64\bin>net start mysql
The MySQL service is starting.
The MySQL service was started successfully.

D:\MySQL\mysql-8.0.20-winx64\bin>mysql -u root -p
Enter password: ************
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.

mysql> ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '自己定義的密碼;
Query OK, 0 rows affected (0.02 sec)

mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| sys |
+--------------------+
4 rows in set (0.01 sec)