本篇文章给大家分享的是有关python中怎么处理多任务和返回值，小编觉得挺实用的，因此分享给大家学习，希望大家阅读完这篇文章后可以有所收获，话不多说，跟着小编一起来看看吧。
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# coding:utf-8
from multiprocessing import Pool
import time
def keywords(title, content, top_n=5):
print u'关键词提取...'
print title, content, top_n
time.sleep(3)
return 0, [u"晴", u"多云"]
def category(title, content):
print u'文本分类...'
print title, content
time.sleep(5)
return 1, [u"天气"]
def run(title, content):
keywords_list = []
category_list = []
pool = Pool(processes=2)
q = []
q.append(pool.apply_async(keywords, args=(title, content, 5)))
q.append(pool.apply_async(category, args=(title, content)))
for item in q:
r = item.get()
if r[0] == 0:
keywords_list = r[1]
elif r[0] == 1:
category_list = r[1]
pool.close()
pool.join()
return category_list, keywords_list
if __name__ == "__main__":
title = u"天气预报"
content = u"北京今日天气：晴转多云"
t1 = time.time()
category_list, keywords_list = run(title, content)
print "分类结果：", " ".join(category_list)
print "关键词提取结果", " ".join(keywords_list)
print time.time() - t1或者：
# coding:utf-8
from multiprocessing import Pool
import time
def keywords(title, content, top_n=5):
print u'关键词提取...'
print title, content, top_n
time.sleep(3)
return 0, [u"晴", u"多云"]
def category(title, content):
print u'文本分类...'
print title, content
time.sleep(5)
return 1, [u"天气"]
def run(title, content):
keywords_list = []
category_list = []
pool = Pool(processes=2)
q = []
q.append(pool.apply_async(keywords, args=(title, content, 5)))
keywords_list = [w["word"] for w in q[0].get()[1]]
category_list = category(title, content)[1]
pool.close()
pool.join()
return category_list, keywords_list
if __name__ == "__main__":
title = u"天气预报"
content = u"北京今日天气：晴转多云"
t1 = time.time()
category_list, keywords_list = run(title, content)
print "分类结果：", " ".join(category_list)
print "关键词提取结果", " ".join(keywords_list)
print time.time() - t1以上就是python中怎么处理多任务和返回值，小编相信有部分知识点可能是我们日常工作会见到或用到的。希望你能通过这篇文章学到更多知识。更多详情敬请关注亿速云行业资讯频道。
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