Python socket编程，tcp和udp

TCP服务端

from socket import *
from time import ctime

tcpsock = socket(AF_INET, SOCK_STREAM)
tcpsock.bind(('127.0.0.1',61001))

tcpsock.listen(5)


print tcpsock
while True:
    print 'wait connection'
    tcpcli,addr = tcpsock.accept()
    print '..connect from ,',addr

    while True:
        data = tcpcli.recv(1024)
        if not data:
            break
        print "received info:",data
        tcpcli.send("nihao, %s"% ctime())

    tcpcli.close()


tcpsock.close()

TCP客户端

from socket import *

tcpsock = socket(AF_INET, SOCK_STREAM)

tcpsock.connect(('127.0.0.1',61001))

tcpsock.send("I am fupeng")
data = tcpsock.recv(1024)
print data



tcpsock.close()

UDP服务器

from socket import *
from time import ctime

tcpsock = socket(AF_INET, SOCK_DGRAM)
tcpsock.bind(('127.0.0.1',61001))



print tcpsock
while True:
    print 'wait connection'

    data ,addr= tcpsock.recvfrom(1024)
    print "received info:",data
    tcpsock.sendto("nihao, %s"% ctime(), addr)



tcpsock.close()

UDP客户端

from socket import

tcpsock = socket(AF_INET, SOCK_DGRAM)


tcpsock.sendto("I am fupeng",('127.0.0.1',61001))
data = tcpsock.recvfrom(1024)
print data



tcpsock.close()