我有以下python UDP套接字客户端。我想在按crtl + c时退出程序,但由于该线程没有发生,我该如何解决?
import socket
from threading import Thread
import signal
import sys
message = "well"
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
server_address = ('127.0.0.1', 3447)
def sighandler(signum, frame):
# Close the server
global sock
print 'Shutting down server...'
# Close existing client socket
sock.close()
signal.signal(signal.SIGINT, sighandler)
def recv():
while True:
print "Waiting to receive data"
data, server = sock.recvfrom(4096)
print "Server : ", server
print "data : ", data
Thread(target=recv).start()
try:
while True:
message = raw_input()
print >>sys.stderr, 'sending "%s"' % message
sent = sock.sendto(message, server_address)
except:
import traceback; traceback.print_exc();
finally:
sock.close()
答案 0 :(得分:0)
有时您在线程中只需要:
navigationController?.view.semanticContentAttribute = .forceRightToLeft
navigationController?.navigationBar.semanticContentAttribute = .forceRightToLeft