python3连接mysql和测试

本机安装好mysql后

驱动安装命令：

     pip install pymysql

测试代码：功能为连接数据库，创建表，并插入一条数据

import pymysql
# 注意把password设为你的root口令:
conn =pymysql.connect(host='127.0.0.1', port=3306, user='root', passwd='123456',db='test')
cursor = conn.cursor()
# 创建user表:
cursor.execute('create table user (id varchar(20) primary key, name varchar(20))')
# 插入一行记录，注意MySQL的占位符是%s:
cursor.execute('insert into user (id, name) values (%s, %s)', ['1', 'Michael'])
cursor.rowcount

# 提交事务:
conn.commit()
cursor.close()
# 运行查询:
cursor = conn.cursor()
cursor.execute('select * from user where id = %s', ('1',))
values = cursor.fetchall()
values
[('1', 'Michael')]
# 关闭Cursor和Connection:
cursor.close()
True
conn.close()