import socket,sys

#sys.exit(1) port = 70 host = sys.argv[1] filename = sys.argv[2] s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.connect((host, port))  

s.sendall(filename + "\r\n")

while 1:

    buf = s.recv(2048)     if not len(buf):         break     sys.stdout.write(buf)

 

没分隔号，弱类型，没变量声明，没结束符号。像 if not len(Buf)

真像写文章一样。哈哈