python 网络编程第一版

时间:2023-03-09 05:57:59
python 网络编程第一版

--version 1.0 只完成server/client 之间的通信。

1、server端的代码:

#!/usr/bin/python
#!coding:utf-8 from socket import *
import os,sys if __name__=="__main__":
#定义套接字
hostIp='127.0.0.1'
port=2048
sock=socket(AF_INET,SOCK_STREAM)
sock.bind((hostIp,port))
sock.listen(5)
print '[info] 开始监听{0}:{1}'.format(hostIp,port)
while True:
#接受一个客户端的连接
conn,addr = sock.accept()
print '[info] has recived a client from {0}'.format(addr)
#与客户端进行交互,直到客户端退出
while True:
#接收客户端发来的信息,一次最多收1024字节
recivedData=conn.recv(1024)
#由于客户端在断开时会发送一个空串,所以我们用这个上来测试连接是否断开
if not recivedData : print '[wan] 客户端已经断开连接...'; break;
print '[info] this is a infomation from client --> {0}'.format(recivedData.decode())
#发送信息到客户端
conn.send('this inforamtion from server --> {0}'.format(recivedData.decode()).encode())
conn.close()

2、client端的代码:

#!/usr/bin/python
#!coding:utf-8 from socket import *
import os,sys if __name__ == "__main__":
#定义套接字
hostIp='127.0.0.1'
port=2048
sock=socket(AF_INET,SOCK_STREAM)
messages=['hello I am a client']
messages=messages+sys.argv[1:]
sock.connect((hostIp,port))
print '[info] 已经连接到server ' for message in messages:
sock.send(message.encode())
print sock.recv(1024).decode()
sock.close()