python:threading多线程模块-使用Queue模块保持线程同步

利用Queue对象先进先出的特性，将每个生产者的数据一次存入队列，而每个消费者将依次从队列中取出数据

import threading        # 导入threading模块
import Queue            # 导入Queue模块
class Producer(threading.Thread):# 定义生产者类
def __init__(self,threadname):
threading.Thread.__init__(self,name = threadname)
def run(self):
global queue    # 声明queue为全局变量
queue.put(self.getName())   # 调用put方法将线程名添加到队列中
print self.getName(),'put ',self.getName(),' to queue'
class Consumer(threading.Thread):# 定义消费者类
def __init__(self,threadname):
threading.Thread.__init__(self,name = threadname)
def run(self):
global queue
print self.getName(),'get ',queue.get(),'from queue'#调用get方法获取队列中内容
queue = Queue.Queue()   # 生成队列对象
plist = []      # 生成者对象列表
clist = []      # 消费者对象列表
for i in range(10):
p = Producer('Producer' + str(i))
plist.append(p)     # 添加到生产者对象列表
for i in range(10):
c = Consumer('Consumer' + str(i))
clist.append(c)     # 添加到消费者对象列表
for i in plist:
i.start()       # 运行生产者线程
i.join()
for i in clist:
i.start()       # 运行消费者线程
i.join()
######运行结果######
>>> Producer0 put  Producer0  to queue
Producer1 put  Producer1  to queue
Producer2 put  Producer2  to queue
Producer3 put  Producer3  to queue
Producer4 put  Producer4  to queue
Producer5 put  Producer5  to queue
Producer6 put  Producer6  to queue
Producer7 put  Producer7  to queue
Producer8 put  Producer8  to queue
Producer9 put  Producer9  to queue
Consumer0 get  Producer0 from queue
Consumer1 get  Producer1 from queue
Consumer2 get  Producer2 from queue
Consumer3 get  Producer3 from queue
Consumer4 get  Producer4 from queue
Consumer5 get  Producer5 from queue
Consumer6 get  Producer6 from queue
Consumer7 get  Producer7 from queue
Consumer8 get  Producer8 from queue
Consumer9 get  Producer9 from queue

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