获取新的SQL记录ID

import mysql.connector

# 连接到数据库
cnx = mysql.connector.connect(user='username', password='password',
                              host='localhost',
                              database='mydatabase')

# 创建游标
cursor = cnx.cursor()

# 插入新记录
sql = "INSERT INTO mytable (name, age) VALUES (%s, %s)"
data = ('John', 30)
cursor.execute(sql, data)

# 获取新记录的ID
new_id = cursor.lastrowid

# 关闭游标和数据库连接
cursor.close()
cnx.close()