Python优先队列实现方法示例
发布时间:2020-12-17 08:03:56 所属栏目:Python 来源:网络整理
导读:本篇章节讲解Python优先队列实现方法。供大家参考研究具体如下: 1. 代码 import Queueimport threadingclass Job(object): def __init__(self,priority,description): self.priority = priority self.description = description print 'New job:'
本篇章节讲解Python优先队列实现方法。分享给大家供大家参考,具体如下: 1. 代码 import Queue import threading class Job(object): def __init__(self,priority,description): self.priority = priority self.description = description print 'New job:',description return def __cmp__(self,other): return cmp(self.priority,other.priority) q = Queue.PriorityQueue() q.put(Job(3,'Mid-level job')) q.put(Job(10,'Low-level job')) q.put(Job(1,'Important job')) def process_job(q): while True: next_job = q.get() print 'Processing job:',next_job.description q.task_done() workers = [threading.Thread(target=process_job,args=(q,)),threading.Thread(target=process_job,] for w in workers: w.setDaemon(True) w.start() q.join() 2. 执行结果 New job: Mid-level job New job: Low-level job New job: Important job Processing job: Important job Processing job: Mid-level job Processing job: Low-level job 更多关于Python相关内容可查看本站专题:《Python数据结构与算法教程》、《Python函数使用技巧总结》、《Python字符串操作技巧汇总》、《Python入门与进阶经典教程》及《Python文件与目录操作技巧汇总》 希望本文所述对大家Python程序设计有所帮助。 (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |