启动服务
以管理员身份运行cmd命令提示符，输入：net start mysql启动服务。
net start mysql
C:\Windows\system32> net start mysql
请求的服务已经启动。
请键入 NET HELPMSG 2182 以获得更多的帮助。
登录MySQL
本地登录： 去到mysql安装位置的bin目录下，并登录mysql，以下以我的电脑安装的为例：
登录语句mysql -u root -p123456 注意：-p与密码之间不能有空格
mysql -u root -p123456
C:\Windows\system32>D:
D:\>cd D:\MySoftwere\mysql-5.7.23-winx64\mysql-5.7.23-winx64\bin
D:\MySoftwere\mysql-5.7.23-winx64\mysql-5.7.23-winx64\bin>mysql -uroot -p123456
mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 76
Server version: 5.7.23 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>
出现如上结果，说明登录已经成功！可以对数据库进行操作了！