进程间的通信小例子

进程间的通信

 1 import multiprocessing
 2 import time
 3 
 4 def write_quene(quene):
 5     for i in range(10):
 6         if quene.full():
 7             print("quene is full")
 8             break
 9         quene.put(i)
10         print("input  successfully:",i)
11 
12 def read_quene(quene):
13     while True:
14         if quene.empty():
15             print("The quene is empty,can not output")
16             break
17 
18         value = quene.get()
19         print(value)
20 
21 if __name__ == '__main__':
22     quene = multiprocessing.Queue()
23     write_process  = multiprocessing.Process(target=write_quene,args=(quene,))
24     read_process  = multiprocessing.Process(target=read_quene,args=(quene,))
25 
26     write_process.start()
27     # 由于两个进程同时进行读入和取出会造成预取之外的效果，因此用join先执行一个进程
28     write_process.join()
29     read_process.start()