#!/usr/bin/env python
# -*- coding:utf-8 -*-
# author:love_cat
from twisted.internet import reactor # 事件循环（终止条件，所有的socket都已经移除）
from twisted.internet import defer # defer.Deferred 特殊的socket对象（不发请求，手动移除）
from twisted.web.client import getPage # 用于创建socket对象（下载完成，自动从事件循环中移除）
# 1. 利用getPage创建socket
# 2. 将socket添加到事件循环
# 3. 开始事件循环（内部发送请求，并接受响应；当所有的socket完成后，终止事件循环）
def response(content):
print(content.decode('utf-8'))
@defer.inlineCallbacks
def task():
url = 'http://www.bilibili.com'
d = getPage(url.encode('utf-8')) # 加上装饰器，得到特殊的socket对象。不发请求，只待在事件循环里面，用于让事件循环一直持续，直到我们手动移除
d.addCallback(response)
yield d
task()
reactor.run()
# 程序的输出结果如下
'''
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'''
@defer.inlineCallbacks
def task1():
url = 'http://www.bilibili.com'
d = getPage(url.encode('utf-8'))
d.addCallback(response)
yield d
@defer.inlineCallbacks
def task2():
url='http://www.baidu.com'
d = getPage(url.encode('utf-8'))
d.addCallback(response)
url = 'http://www.bilibili.com'
d = getPage(url.encode('utf-8'))
d.addCallback(response)
yield d
def response(content):
print(content.decode('utf-8')[0:1000]) # 这里只取前1000个字符
def run_until_complete(*args,**kwargs):
reactor.stop()
t1 = task1()
t2 = task2()
all_task = defer.DeferredList([t1,t2])
all_task.addBoth(run_until_complete)
reactor.run()
# 程序的输出结果如下
'''
<!DOCTYPE html>
<!--STATUS OK-->
<html>
<head>
<meta http-equiv="content-type" content="text/html;charset=utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=Edge">
<meta content="always" name="referrer">
<meta name="theme-color" content="#2932e1">
<link rel="shortcut icon" href="/favicon.ico" type="image/x-icon" />
<link rel="search" type="application/opensearchdescription+xml" href="/content-search.xml" title="百度搜索" />
<link rel="icon" sizes="any" mask href="//www.baidu.com/img/baidu_85beaf5496f291521eb75ba38eacbd87.svg">
<link rel="dns-prefetch" href="//s1.bdstatic.com"/>
<lin
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<!DOCTYPE html><html lang="zh-Hans"><head><meta charset="utf-8"><title>哔哩哔哩 (゜-゜)つロ 干杯~-bilibili</title><meta name="description" content="bilibili是国内知名的视频弹幕网站，这里有最及时的动漫新番，最棒的ACG氛围，最有创意的Up主。大家可以在这里找到许多欢乐。"><meta name="keywords" content="B站,弹幕,字幕,AMV,MAD,MTV,ANIME,动漫,动漫音乐,游戏,游戏解说,ACG,galgame,动画,番组,新番,初音,洛天依,vocaloid"><meta name="renderer" content="webkit"><meta http-equiv="X-UA-Compatible" content="IE=edge"><meta name="spm_prefix" content="333.334"><meta name="baidu-site-verification" content="gbRdPloQBZ"><meta name="360-site-verification" content="6057b3e352a63d37c14dfc82e2ccb288"><meta name="shenma-site-verification" content="a24cb5f89c4c9cb6d35c24236f4bf36d_1527561745"><meta name="google-site-verification" content="P_nC9t8BcWeyX8lXsTAUIAeHKrFuOYQ_uuCDC9mavwg"><link rel="dns-prefetch" href="//s1.hdslb.com"><link rel="dns-prefetch" href="//i0.hdslb.com"><link rel="dns-prefetch" href="//i1.hdslb.com"><link rel="dns-prefetch" href="//i2.hdslb.com"><link rel="dns-prefetch" href="//static.h
'''