Python实现绑定端口等待连接

#!/usr/bin/env python # -*- coding:utf-8 -*- import sys,socket host = '' port = 2012 s = socket.socket(socket.AF_INET,socket.SOCK_STREAM) s.setsockopt(socket.SOL_SOCKET,socket.SO_REUSEADDR,1) s.bind((host,port)) s.listen(100) print "Server is runnion on port %d;press Ctrl-C to exit."%port while 1:     clientsock,clientaddr = s.accept()     clientfile = clientsock.makefile('rw',0)     clientfile.write("Welcome ," str(clientaddr) "n")     clientfile.write("Please enter a string:")     line = clientfile.readline().strip()     clientfile.write("You entered %d characters.n"%len(line))     clientfile.close()     clientsock.close()