电脑怎么连接数据库服务器

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 the database")
            return connection
    except mysql.connector.Error as err:
        print(f"Error: {err}")
    return None

connection = connect_to_database()
if connection:
    connection.close()