mysql连接数据库后台代码

import mysql.connector

def connect_to_database():
    try:
        connection = mysql.connector.connect(
            host="localhost",
            user="your_username",
            password="your_password",
            database="your_database"
        )
        if connection.is_connected():
            print("Successfully connected to MySQL database")
            cursor = connection.cursor()
            cursor.execute("SELECT DATABASE();")
            record = cursor.fetchone()
            print("You're connected to database: ", record)
    except mysql.connector.Error as err:
        print(f"Error: '{err}'")
    finally:
        if connection.is_connected():
            cursor.close()
            connection.close()
            print("MySQL connection is closed")

if __name__ == "__main__":
    connect_to_database()