python实现TCP文件传输

import socket
import time

s = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
s.bind((\'127.0.0.1\',9999))
s.listen(5)
print(\'Waiting for connection...\')

while True:
 sock,addr = s.accept()
 print(\'Accept new connection from %s:%s...\' % addr)
 if count == 0:
  data1 = sock.recv(1024)
  print(str(data1))
  file_total_size = int(data1.decode())
  received_size = 0
  sock.send(\'received\'.encode())
  data = sock.recv(1024)
  filepath = str(data.decode())
  f = open(filepath, \'wb\')
 while received_size < file_total_size:
  data = sock.recv(1024)
  f.write(data)
  received_size += len(data)
  print(\'已接收 \',received_size,\' Byte\')
 data = sock.recv(1024)
 if data == b\'end\':
  break
  
f.close()
s.close()

import socket
import os
import time
filename = input(\'please enter the filename you want to send:\\n\')
filesize = str(os.path.getsize(filename))
fname1, fname2 = os.path.split(filename)
client_addr = (\'127.0.0.1\',9999)
f = open(filename,\'rb\')
count = 0
flag = 1
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
#建立连接:
s.connect((\'127.0.0.1\', 9999))
while True:
 if count == 0:
  s.send(filesize.encode())
  start = time.time()
  s.recv(1024)
  s.send(fname2.encode())
 for line in f:
  s.send(line)
  print(\'sending...\')
 s.send(b\'end\')
 break

s.close
end = time.time()
print(\'cost\' + str(round(end - start, 2)) + \'s\')