线程进程学习

# encoding: utf-8
"""
@author: lileilei
@site: 
@software: PyCharm
@file: login.py
@time: 2017/7/26 10:28
"""
import  requests,time
from  multiprocessing import  Pool
url=‘http://www.jd.com‘
total=0
suc=0
fail=0
ecept=0
maxtime=0
mintime=0
gt3=0
lt3=0
def  baiduGent():
    global total
    global suc
    global  fail
    global  gt3
    global lt3
    global ecept
    try:
        st=time.time()
        conn=requests.get(url)
        res=conn.status_code
        if res==200:
            total+=1
            suc+=1
        else:
            total+=1
            fail+=1
        time_span = time.time() - st
        print(time_span)
        if time_span>3:
            gt3+=1
        else:
            lt3+=1
    except Exception as e:
        print(e)
        total+=1
        ecept+=1
if __name__ ==‘__main__‘:
    print(‘===========请求开始===========‘)
    start_time = time.time()
    pools = Pool(100)
    for i in range(10):
        pools.apply_async(baiduGent,args=())
    pools.close()
    pools.join()
from multiprocessing import Process,Queue 
import os, time, random
def write(q):
    print(‘Process to 产生: %s‘ % os.getpid())
    for value in [‘苹果‘, ‘香蕉‘, ‘橘子‘]:
        print(‘产生 %s to queue...‘ % value)
        q.put(value)
        time.sleep(random.random())
def read(q):
    print(‘Process to 消费: %s‘ % os.getpid())
    while True:
        value = q.get()
        print(‘消费 %s from queue.‘ % value)
if __name__==‘__main__‘:
    q = Queue()
    pw = Process(target=write, args=(q,))
    pr = Process(target=read, args=(q,))
    pw.start()
    pr.start()
    pw.join()
    pr.terminate()
m=list(map(lambda x: x * x, [1, 2, 3, 4, 5, 6, 7, 8, 9]))
print(m)
f=list(map(lambda x:True if x%3==0 else False,range(100)))
print(f)
import asyncio
@asyncio.coroutine
async def hello():
    print (‘hello word‘)
    r=await asyncio.sleep(1)
    print(‘hello  again‘)
loop=asyncio.get_event_loop()
loop.run_until_complete(hello())
loop.close()
import threading
import asyncio

@asyncio.coroutine
def hello():
    print(‘Hello world! (%s)‘ % threading.currentThread())
    yield from asyncio.sleep(1)
    print(‘Hello again! (%s)‘ % threading.currentThread())

loop = asyncio.get_event_loop()
tasks = [hello(), hello()]
loop.run_until_complete(asyncio.wait(tasks))
loop.close()
import asyncio
@asyncio.coroutine
def wget(host):
    print(‘wegt %s ....‘%host)
    connt=asyncio.open_connection(host,80)
    reder,writer=yield from connt
    hserd= ‘GET / HTTP/1.0\r\nHost: %s\r\n\r\n‘ % host
    writer.write(hserd.encode(‘utf-8‘))
    yield from writer.drain()
    while 1:
        line=yield from reder.readline()
        if line ==b‘\r\n‘:
            break
        print(‘%s header > %s‘ % (host, line.decode(‘utf-8‘).rstrip()))
        writer.close()
loop=asyncio.get_event_loop()
tasks=[wget(host) for host in [‘www.sina.com.cn‘, ‘www.sohu.com‘, ‘www.163.com‘]]
loop.run_until_complete(asyncio.wait(tasks))
loop.close()
import asyncio
from aiohttp import web
async def index(request):
    await asyncio.sleep(0.5)
    return web.Response(body=b‘<h1>Index</h1>‘,content_type=‘text/html‘)
async def hello(request):
    await asyncio.sleep(0.5)
    text = ‘<h1>hello, %s!</h1>‘ % request.match_info[‘name‘]
    return web.Response(body=text.encode(‘utf-8‘),content_type=‘text/html‘)
async def init(loop):
    app = web.Application(loop=loop)
    app.router.add_route(‘GET‘, ‘/‘, index)
    app.router.add_route(‘GET‘, ‘/hello/{name}‘, hello)
    srv = await loop.create_server(app.make_handler(), ‘127.0.0.1‘, 8000)
    print(‘Server started at http://127.0.0.1:8000...‘)
    return srv
loop = asyncio.get_event_loop()
loop.run_until_complete(init(loop))
loop.run_forever()
import asyncio,time
@asyncio.coroutine
async def hello():
    print (‘hello word‘)
start_time=time.time()
loop=asyncio.get_event_loop()
tasks=[]
for i in range(10000):
    tasks.append(hello()) 
loop.run_until_complete(asyncio.wait(tasks))
loop.close()
print(‘异步处理时间：%s‘%(time.time()-start_time))
import time,gevent 
def print_s(num):
    st=time.time()
    conn=requests.get(‘http://www.jd.com‘)
    res=conn.status_code
    if res==200:
        print(‘chenggong‘)
    else:
        print(‘shibai‘)
start_time=time.time()
events=[gevent.spawn(print_s,num)for num in range(10000)]
gevent.joinall(events)
print(‘协程时间:%s‘%(time.time()-start_time))