带两个占位符的MySQL Python问题

import mysql.connector

# 建立连接
cnx = mysql.connector.connect(user='username', password='password',
                              host='hostname', database='database_name')

# 创建游标对象
cursor = cnx.cursor()

# 执行SQL语句
query = "SELECT * FROM table_name"
cursor.execute(query)

# 处理结果
for row in cursor:
    print(row)

# 关闭游标和连接
cursor.close()
cnx.close()

import mysql.connector

# 建立连接
cnx = mysql.connector.connect(user='username', password='password',
                              host='hostname', database='database_name')

# 创建游标对象
cursor = cnx.cursor()

# 执行SQL查询
query = "SELECT * FROM table_name"
cursor.execute(query)

# 处理查询结果
for row in cursor:
    print(row)

# 执行SQL操作
insert_query = "INSERT INTO table_name (column1, column2) VALUES (%s, %s)"
data = ('value1', 'value2')
cursor.execute(insert_query, data)

# 提交操作
cnx.commit()

# 关闭游标和连接
cursor.close()
cnx.close()