Python核心编程（网络编程）

Posted 2020-10-29 老司机快开车

1、python socket模块内置方法

 

 2、tcp服务器伪代码

 

3、tcp客户端伪代码

4、socket模块属性

 

5、一个简单的tcp客户端和服务端

服务端代码：

# encoding:utf-8
from socket import *
from time import ctime
from datetime import *

# 定义tcpServer监听端口号
HOST = \'0.0.0.0\'
PORT = 21567
ADDR = (HOST, PORT)
BUFFSIZE=1024
# 初始化一個tcp socket
tcpSvrSock = socket(AF_INET, SOCK_STREAM)
tcpSvrSock.bind(ADDR)
tcpSvrSock.listen(5)
while True:
    print(\'[%s] wait for connection...\'%(datetime.now()))
    tcpClientSock, clientAddr = tcpSvrSock.accept()
    print(\'[%s] connect from: %s...\'%(datetime.now(),clientAddr))
    while True:
        recieveData = tcpClientSock.recv(BUFFSIZE)
        if not recieveData:
            break
        print(\'[%s] 收到报文:%s\' %(datetime.now(),recieveData.decode(\'utf-8\')))
        sendData = input(\'> \')
        if not sendData:
            break
        tcpClientSock.send(bytes(sendData,\'utf-8\'))
    tcpClientSock.close()
tcpSvrSock.close()

　　

　　

 客户端代码：

# encoding:utf-8
from socket import *
from datetime import *

HOST = \'127.0.0.1\'
PORT = 21567
ADDR = (HOST, PORT)
BUFFSIZE=1024
clientSocket=socket(AF_INET,SOCK_STREAM)
clientSocket.connect(ADDR)

while True:
    sendData=input(\'> \')
    if not sendData:
        break
    sendData=bytes(sendData, \'utf-8\')
    clientSocket.send(sendData)
    recieveData=clientSocket.recv(BUFFSIZE)
    if not recieveData:
        break
    print(recieveData.decode(\'utf-8\'))
clientSocket.close()