1. mysql -u root -p
2. show global variables like 'port';
3. create database microservice;
4. use microservice;
5. create TABLE tb_user( id int(32) PRIMARY KEY AUTO_INCREMENT, username varchar(32), address varchar(256) );
6. insert into tb_user values('1', '小韩','北京市海淀区');
7. select * from tb_user;