發送端可以不停的發送新文件，接收端可以不停的接收新文件。

例如：發送端輸入：e:/visio.rar，接收端會默認保存為 e:/new_visio.rar，支持多并發，具體實現如下；

接收端：

方法一：

#-*- coding: UTF-8 -*-import socket,time,SocketServer,struct,os,threadhost='192.168.50.74'port=12307s=socket.socket(socket.AF_INET,socket.SOCK_STREAM) #定義socket類型s.bind((host,port)) #綁定需要監聽的Ip和端口號，tuple格式s.listen(1) def conn_thread(connection,address):   while True:    try:      connection.settimeout(600)      fileinfo_size=struct.calcsize('128sl')       buf = connection.recv(fileinfo_size)      if buf: #如果不加這個if，第一個文件傳輸完成后會自動走到下一句        filename,filesize =struct.unpack('128sl',buf)         filename_f = filename.strip('/00')        filenewname = os.path.join('e://',('new_'+ filename_f))        print 'file new name is %s, filesize is %s' %(filenewname,filesize)        recvd_size = 0 #定義接收了的文件大小        file = open(filenewname,'wb')        print 'stat receiving...'        while not recvd_size == filesize:          if filesize - recvd_size > 1024:            rdata = connection.recv(1024)            recvd_size += len(rdata)          else:            rdata = connection.recv(filesize - recvd_size)             recvd_size = filesize          file.write(rdata)        file.close()        print 'receive done'        #connection.close()    except socket.timeout:      connection.close()while True:  connection,address=s.accept()  print('Connected by ',address)  #thread = threading.Thread(target=conn_thread,args=(connection,address)) #使用threading也可以  #thread.start()  thread.start_new_thread(conn_thread,(connection,address)) s.close()

方法二：

#-*- coding: UTF-8 -*-import socket,time,SocketServer,struct,oshost='192.168.50.74'port=12307ADDR=(host,port)class MyRequestHandler(SocketServer.BaseRequestHandler):    def handle(self):       print('connected from:', self.client_address)    while True:      fileinfo_size=struct.calcsize('128sl') #定義文件信息。128s表示文件名為128bytes長，l表示一個int或log文件類型，在此為文件大小      self.buf = self.request.recv(fileinfo_size)      if self.buf: #如果不加這個if，第一個文件傳輸完成后會自動走到下一句        self.filename,self.filesize =struct.unpack('128sl',self.buf) #根據128sl解包文件信息，與client端的打包規則相同        print 'filesize is: ',self.filesize,'filename size is: ',len(self.filename) #文件名長度為128，大于文件名實際長度        self.filenewname = os.path.join('e://',('new_'+ self.filename).strip('/00')) #使用strip()刪除打包時附加的多余空字符        print self.filenewname,type(self.filenewname)        recvd_size = 0 #定義接收了的文件大小        file = open(self.filenewname,'wb')        print 'stat receiving...'        while not recvd_size == self.filesize:          if self.filesize - recvd_size > 1024:            rdata = self.request.recv(1024)            recvd_size += len(rdata)          else:            rdata = self.request.recv(self.filesize - recvd_size)             recvd_size = self.filesize          file.write(rdata)        file.close()        print 'receive done'    #self.request.close()tcpServ = SocketServer.ThreadingTCPServer(ADDR, MyRequestHandler) print('waiting for connection...' )tcpServ.serve_forever()