Python：socket编程，TCP/UDP

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一、TCP客户端/服务端

1.1 tcpSrv.py

#!/usr/bin/env pythonfrom socket import *from time import ctimeHOST = ""PORT = 6000BUFSIZE = 1024ADDR = (HOST, PORT)sockSrv = socket(AF_INET, SOCK_STREAM)sockSrv.bind(ADDR)sockSrv.listen(5)while True:        sockCli,addr = sockSrv.accept()        print "...connected from:", addr        while True:                data = sockCli.recv(BUFSIZE)                if not data:                        break                print data;                sockCli.send("[%s] %s" % (ctime(), data))        sockCli.close()sockSrv.close()

1.2 tcpCli.py

[root@localhost python]# vim tcpCli.py #!/usr/bin/env pythonfrom socket import *HOST = "localhost"PORT = 6000BUFSIZE = 1024ADDR = (HOST, PORT)sockCli = socket(AF_INET, SOCK_STREAM)sockCli.connect(ADDR)while True:        data = raw_input(">")        if not data:                break        sockCli.send(data)        data = sockCli.recv(BUFSIZE)        if not data:                break        print datasockCli.close()

二、UDP客户端/服务端

2.1 udpSrv.py

#!/usr/bin/env pythonfrom socket import *from time import ctimeHOST = ""PORT = 6000BUFSIZE = 1024ADDR = (HOST, PORT)sockSrv = socket(AF_INET, SOCK_DGRAM)sockSrv.bind(ADDR)while True:        data, addr = sockSrv.recvfrom(BUFSIZE)        print "receive %s from %s" % (data, addr)        sockSrv.sendto("[%s] %s"%(ctime(),data), addr)sockSrv.close()

2.2 udpCli.py

#!/usr/bin/env pythonfrom socket import *HOST = "localhost"PORT = 6000BUFSIZE = 1024ADDR = (HOST, PORT)sockCli = socket(AF_INET, SOCK_DGRAM)while True:        data = raw_input(">")        if not data:                break        sockCli.sendto(data, ADDR)        data, addr = sockCli.recvfrom(BUFSIZE)        if not data:                break        print datasockCli.close()

参考资料：

《Python核心编程》：第16章网络编程。

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