MySQL 链接方法思考

代码：

import subprocess
import os
from dotenv import load_dotenv
import pymysql
from sqlalchemy import create_enginedef check_mysql_service():"""检查 MySQL 服务是否运行"""try:result = subprocess.run(["systemctl", "is-active", "mysql"],capture_output=True,text=True)if "active" in result.stdout:print("✅ MySQL 服务正在运行")return Trueelse:print(f"❌ MySQL 服务未运行: {result.stdout}")return Falseexcept Exception as e:print(f"⚠️ 无法检查服务状态: {str(e)}")return Falsedef test_mysql_login(user, password):"""测试命令行登录"""try:cmd = f"mysql -u {user} -p{password} -e 'SELECT 1;'"result = subprocess