mulithread或multiprocess中的python socket.connect超时错误

import socket

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.settimeout(5)  # 设置超时时间为5秒
s.connect(('example.com', 80))

import socket
from time import sleep

max_retries = 3
retry_count = 0

while retry_count < max_retries:
    try:
        s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        s.settimeout(5)
        s.connect(('example.com', 80))
        break
    except socket.timeout:
        retry_count += 1
        sleep(1)  # 等待1秒后重试

if retry_count == max_retries:
    print("连接失败")
else:
    print("连接成功")

from multiprocessing.pool import ThreadPool
import socket

def connect_to_server(host, port):
    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    s.settimeout(5)
    s.connect((host, port))
    s.close()

pool = ThreadPool(processes=5)  # 限制同时连接的线程数量
pool.map(connect_to_server, [('example.com', 80)] * 10)  # 尝试连接10次
pool.close()
pool.join()