Python网络编程实现TCP和UDP连接,使用socket模块, 所有代码在python3下测试通过。
实现TCP
# @param Python网络编程实现TCP和UDP连接
# @author 编程之家 jb51.cc|jb51.cc
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import socket
# 创建一个socket:
s = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
# 建立连接:
s.connect(('www.baidu.com',80))
# 发送数据:
s.send(b'GET / HTTP/1.1\r\nHost: www.baidu.com\r\nConnection: close\r\n\r\n')
# 接收数据:
buffer = []
while True:
# 每次最多接收1k字节:
d = s.recv(1024)
if d:
buffer.append(d)
else:
break
data = b''.join(buffer)
# 关闭连接:
s.close()
header,html = data.split(b'\r\n\r\n',1)
print(header.decode('utf-8'))
# 把接收的数据写入文件:
with open('sina.html','wb') as f:
f.write(html)
# End www.jb51.cc
实现UDP连接
服务端:
# @param Python网络编程实现TCP和UDP连接
# @author 编程之家 jb51.cc|jb51.cc
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import socket
s = socket.socket(socket.AF_INET,socket.SOCK_DGRAM)
# 绑定端口:
s.bind(('127.0.0.1',9999))
print('Bind UDP on 9999...')
while True:
# 接收数据:
data,addr = s.recvfrom(1024)
print('Received from %s:%s.' % addr)
reply = 'Hello,%s!' % data.decode('utf-8')
s.sendto(reply.encode('utf-8'),addr)
# End www.jb51.cc
客户端:
# @param Python网络编程实现TCP和UDP连接
# @author 编程之家 jb51.cc|jb51.cc
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import socket
s = socket.socket(socket.AF_INET,socket.SOCK_DGRAM)
for data in [b'Michael',b'Tracy',b'Sarah']:
# 发送数据:
s.sendto(data,('127.0.0.1',9999))
# 接收数据:
print(s.recv(1024).decode('utf-8'))
s.close()
# End www.jb51.cc
原文链接:https://www.f2er.com/python/526865.html