05 2017 档案
摘要:OSI七层 physical layer data link layer network layer transport layer session layer presentation layer application layer
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摘要:1 import gevent 2 import requests 3 4 def f(url): 5 print('get %s'% url) 6 rq=requests.get(url) 7 data=rq.text 8 print(url,len(data)) 9 10 gevent.joinall([gevet.spawn(f...
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摘要:class Foo(object): def __init__(self, frob, frotz): self.frobnicate = frob self.frotz = frotz class Bar(Foo): def __init__(self, frob, frizzle): super
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摘要:def gg(): print(time.time()) return time.time() t1=threading.Thread(target=gg,) t2=threading.Thread(target=gg,) t2=threading.Thread() t1.start() t2.st
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摘要:UDP(user datagram protocol)用户数据协议 特点: 面向无连接:传输之前源端和目的端不需要简历连接 每个数据报的大小都在64K(8个字节)以内 传输快,不稳定 主要运用在:邮局寄件、实时聊天、视频会议 TCP(transmission control protocol)传输控
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摘要:client #!usr/bin/evn python # -*- coding:utf-8 -*- import socket import os sk=socket.socket() print(sk) address=('127.0.0.1',8888) sk.connect(address)
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摘要:c #! bin/usr/evn python # -*- coding:utf-8 -*- import socket,os sk=socket.socket() sk.connect(('127.0.0.1',8888)) BASE_DIR=os.path.dirname(__file__) w
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摘要:server #server #!usr/bin/evn python # -*- coding:utf-8 -*- import socket import subprocess sk=socket.socket() addrs=('127.0.0.1',8888) sk.bind(addrs)
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