python中的网络编程

最新推荐文章于 2024-08-27 07:11:30 发布

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#python #网络 #import #服务器 #stream #socket

TCP方式：

1、创建一个TCP服务器

serSock = socket.socket()       #创建服务器套接字
serSock.bind()                  #把地址绑定到套接字，使得client方便连接
serSock.listen()                #监听连接
inf_loop:                       #服务器无限循环
    cliSock = serSock.accept()  #接收客户端连接此函数返回一个新的socket, 对应于客户端的socket，建立通信信道
    comm_loop:                  通信循环
        cliSock.recv()/cliSock.send() #接收与发送
    cliSock.close()             #关闭客户端套接字
serSock.close()                 #关闭服务器套接字

Python代码：

import socket
from time import ctime

HOST = '10.10.30.205'; PORT = 21567;BUFSIZ = 1024
ADDR= (HOST,PORT)

tcpSerSock = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
tcpSerSock.bind(ADDR)
tcpSerSock.listen(5)
while True:
    print "Waiting for Connection..."
    tcpCliSock, addr = tcpSerSock.accept()
    print "Connect from:",addr
    while True:
        data = tcpCliSock.recv(BUFSIZ)
        if not data:
            break
        tcpCliSock.send('[%s],%s'%(ctime(),data))
    tcpCliSock.close()
tcpSerSock.close()

2、创建一个TCP客户端

cliSock = socket.socket()       #创建客户端套接字
cliSock.connect()               #尝试连接服务器
comm_loop:                      #通信循环
    cliSock.send()/cliSock.recv()#发送与接收
cliSock.close()                 #关闭客户端套接字

Python 代码：

import socket

HOST = '10.10.30.205'; PORT = 21567;BUFSIZ = 1024
ADDR = (HOST,PORT)
tcpCliSock = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
tcpCliSock.connect(ADDR)

while True:
    data = raw_input('> ')
    if not data:
        break
    tcpCliSock.send(data)
    data = tcpCliSock.recv(BUFSIZ)
    if not data :
        break
    print data
tcpCliSock.close()

2、UDP方式

创建一个UDP服务器

Python 代码

import socket
from time import ctime

HOST = '10.10.30.205'; PORT = 21567;BUFSIZ = 1024
ADDR= (HOST,PORT)

udpSerSock = socket.socket(socket.AF_INET,socket.SOCK_DGRAM)
udpSerSock.bind(ADDR)

while True:
    print 'Waiting for message...'
    data, addr = udpSerSock.recvfrom(BUFSIZ)
    udpSerSock.sendto('[%s] %s' % (ctime(),data),addr)
    print '...received from  and return to: ',addr
udpSerSock.close()

创建一个UDP客户端

Python 代码

import socket

HOST = '10.10.30.205'; PORT = 21567;BUFSIZ = 1024
ADDR= (HOST,PORT)

udpCliSock = socket.socket(socket.AF_INET,socket.SOCK_DGRAM)

while True:
    data = raw_input('> ')
    if not data :
        break
    udpCliSock.sendto(data,ADDR)
    data,ADDR = udpCliSock.recvfrom(BUFSIZ)
    if not data:
        break
    print data
udpCliSock.close()