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我是新来的，我遇到了问题。运行我的代码时，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))
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1 回答 1

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解决了问题，问题是连接中的端口有问题，是通过int写的

于 2021-03-29T17:19:16.190 回答