Python网络编程中的常见问题及解决方法

import Socket

# 设置超时时间为5秒
socket.setdefaulttimeout(5)

# 连接服务器
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect(('www.example.com', 80))

import socket

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
try:
    s.connect(('www.example.com', 80))
    # 进行数据发送和接收操作
except socket.error as e:
    print("连接断开: %s" % e)
finally:
    s.close()

import socket

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect(('www.example.com', 80))
try:
    s.sendall(b'Hello, world!')
except socket.error as e:
    print("数据发送失败: %s" % e)
finally:
    s.close()

import socket

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect(('www.example.com', 80))
buffer_size = 1024  # 接收缓冲区大小为1024字节
data = b''  # 接收到的数据
while True:
    recv_data = s.recv(buffer_size)
    if not recv_data:
        break
    data += recv_data
s.close()

import socket
import threading

def handle_client(client_socket):
    while True:
        data = client_socket.recv(1024)
        if not data:
            break
        # 处理数据
        # ...
    client_socket.close()

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind(('127.0.0.1', 8888))
s.listen(5)

while True:
    client_socket, addr = s.accept()
    threading.Thread(target=handle_client, args=(client_socket,)).start()

import asyncio

async def handle_client(reader, writer):
    while True:
        data = await reader.read(1024)
        if not data:
            break
        # 处理数据
        # ...
    writer.close()

async def main():
    server = await asyncio.start_server(
        handle_client, '127.0.0.1', 8888)

    async with server:
        await server.serve_forever()

asyncio.run(main())