Aiomysql pymysql.err.OperationalError: (2003, "Can't connect to MySQL server on '127.0.0.1'")

Question

我是新来的，遇到了问题。当 运行 我的代码出现错误 pymysql.err.OperationalError: (2003, "Can't connect to MySQL server on 'localhost'"), 告诉我它可能是什么

import aiomysql
import asyncio

loop = asyncio.get_event_loop()


async def search_tel(telephone):
    conn = await aiomysql.connect(host="localhost", port="3306",
                                  user="root", password="password",
                                  db="bill", loop=loop)
    cursor = await conn.cursor()
    await cursor.execute(f"SELECT TRUE FROM users WHERE telefon={telephone}")
    print(cursor.description)
    result = await cursor.fetchall()
    print(result)
    if result == 1:
        conn.close()
        return True
    else:
        conn.close()
        return False
tel = "000000000"
loop.run_until_complete(search_tel(telephone=tel))

Answer 1

问题解决了，问题是连接的端口有问题，是通过int

写的