Python利用Struct模块编解码网络数据

2023-11-18 11:13:34

#!/usr/bin/python
# -*- coding: utf-8 -*-

import struct,sys

def htons(num):
    return struct.pack('!H',num)
def htonl(num):
    return struct.pack('!I',num)
#def ntohs(data):
#    return struct.unpack('!H',data)[0]
#def ntohl(data):
#    return struct.unpack('!I',data)[0]

def sendstring(data):
    return htonl(len(data))+data

print "Enter a string:"
str = sys.stdin.readline().rstrip()

print `sendstring(str)`