python tcp socket示例

服务端

#!/usr/bin/python3

import socket

print("server")
host = ''
port = 9999
s = socket.socket()

s.setsockopt(socket.SOL_SOCKET,socket.SO_REUSEADDR,True)

s.bind((host,port))

s.listen(5)

c,addr = s.accept()
c.send(b'server->client')

s.close()

客户端

#!/usr/bin/python3

import socket

print("client")
# host = socket.gethostname()
host = '127.0.0.1'
port = 9999

s = socket.socket()

s.connect((host,port))

print(s.recv(1024))

s.close()