如何使用python控制数据库？

1.安装MySQL数据库

MySQL官网下载

2.安装MySQL驱动

pip install mysql-connector-python --allow-external mysql-connector-python

3.连接数据库

#!/usr/bin/env python
#coding=utf-8

import mysql.connector
conn = mysql.connector.connect(user='root', password='huangxin', database='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', 'Katy'])      
//插入第二条，cursor.execute('insert into user (id, name) values (%s, %s)', ['2', 'Bob'])      
# 提交事务:
conn.commit()
cursor.close()

在数据库中进行查询：

//在PyCharm中可运行下面的代码进行查询

#!/usr/bin/env python
#coding=utf-8

import mysql.connector
conn = mysql.connector.connect(user='root', password='huangxin', database='test')
cursor = conn.cursor()
cursor.execute('select * from user where id = %s', ('1',))
values = cursor.fetchall()
print (values)
# 关闭Cursor和Connection:
cursor.close()
conn.close()

运行结果：

"C:\Program Files\Python36\python.exe" C:/Users/Administrator/Desktop/jump_demo/test/test.py
[('1', 'Katy')]
[('2', 'Bob')]

Process finished with exit code 0