Server:
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import socket
port=8081
s=socket.socket(socket.AF_INET,socket.SOCK_DGRAM)
从指定的端口,从任何发送者,接收UDP数据
s.bind(('',port))
print('正在等待接入...')
while True:
#接收一个数据
data,addr=s.recvfrom(1024)
print('Received:',data,'from',addr)
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Client:
import socket
port=8081
host='localhost'
s=socket.socket(socket.AF_INET,socket.SOCK_DGRAM)
s.sendto(b'hello,this is a test info !',(host,port))
很简单 。下面是TCP方式:
Server:
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-- coding: utf-8 --
from socket import *
from time import ctime
//代码效果参考:https://v.youku.com/v_show/id_XNjQwNjgzODMwNA==.html
HOST=''
PORT=12345
BUFSIZ=1024
ADDR=(HOST, PORT)
sock=socket(AF_INET, SOCK_STREAM)
sock.bind(ADDR)
sock.listen(5)
while True:
print('waiting for connection')
tcpClientSock, addr=sock.accept()
print('connect from ', addr)
while True:
try:
data=tcpClientSock.recv(BUFSIZ)
except:
print(e)
tcpClientSock.close()
break
if not data:
break
s='Hi,you send me :[%s] %s' %(ctime(), data.decode('utf8'))
tcpClientSock.send(s.encode('utf8'))
print([ctime()], ':', data.decode('utf8'))
tcpClientSock.close()
sock.close()
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Client:
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-- coding: utf-8 --
from socket import *
class TcpClient:
HOST='127.0.0.1'
PORT=12345
BUFSIZ=1024
ADDR=(HOST, PORT)
def init(self):
self.client=socket(AF_INET, SOCK_STREAM)
self.client.connect(self.ADDR)
while True:
data=input('>')
if not data:
break
self.client.send(data.encode('utf8'))
data=self.client.recv(self.BUFSIZ)
if not data:
break
print(data.decode('utf8'))
//代码效果参考:https://v.youku.com/v_show/id_XNjQwNjg0MTE5Mg==.html
if name == 'main':
client=TcpClient()
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上面的TCP方式有个问题,不能退出,好吧,我们改造一下,使这个程序可以发送quit命令以退出:
Server:
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-- coding: utf-8 --
from socket import *
from time import ctime
from time import localtime
import time
HOST=''
PORT=1122 #设置侦听端口
BUFSIZ=1024
ADDR=(HOST, PORT)
sock=socket(AF_INET, SOCK_STREAM)
sock.bind(ADDR)
sock.listen(5)
设置退出条件
STOP_CHAT=False
while not STOP_CHAT:
print('等待接入,侦听端口:%d' % (PORT))
tcpClientSock, addr=sock.accept()
print('接受连接,客户端地址:',addr)
while True:
try:
data=tcpClientSock.recv(BUFSIZ)
except:
#print(e)
tcpClientSock.close()
break
if not data:
break
#python3使用bytes,所以要进行编码
#s='%s发送给我的信息是:[%s] %s' %(addr[0],ctime(), data.decode('utf8'))
#对日期进行一下格式化
ISOTIMEFORMAT='%Y-%m-%d %X'
stime=time.strftime(ISOTIMEFORMAT, localtime())
s='%s发送给我的信息是:%s' %(addr[0],data.decode('utf8'))
tcpClientSock.send(s.encode('utf8'))
print([stime], ':', data.decode('utf8'))
#如果输入quit(忽略大小写),则程序退出
STOP_CHAT=(data.decode('utf8').upper()=="QUIT")
if STOP_CHAT:
break
tcpClientSock.close()
sock.close()
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Client: