Python优先队列实现方法示例
本文实例讲述了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,args=(q,)),] 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。
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