Python 半开放socket

利用shutdown实现半开放的socket

#server.py
import socket
s=socket.socket()
s.bind(('127.0.0.1',2000))
s.listen(5)
while 1:
    cs,address=s.accept()
    cs.shutdown(0)
    print 'got cinnected from',address
    cs.send('hello I am server,weclome')
    ra=cs.recv(512)
    print ra
    raw_input()
    cs.close()
报错信息

got cinnected from ('127.0.0.1', 56772)
Traceback (most recent call last):
File "server.py", line 10, in <module>
ra=cs.recv(512)
socket.error: [Errno 10058]

#client.py
import socket
s=socket.socket()
s.connect(('127.0.0.1',2000))
data=s.recv(512)
print 'the data received is\n    ',data
s.send('hihi I am client')

s.close()
运行结果

the data received is
hello I am server,weclome

当shutdown参数为0时，该socket可以发送，但不能接收；与之对应的远端不能发送，可以接收

参数为1时，结果相反，参数为2，不可读写

本人初学，有错请指出！多谢