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一、进程

import multiprocessingimport osimport signalprocess_id = []num=multiprocessing.Value("d",10.0) #单个值num_array=multiprocessing.Array("i",[1,2,3,4,5])   #主进程与子进程共享这个数组 def func(i,a,array):    process_id.append(os.getpid())    while True:        print("the {} dog".format(i))        array[0] = a        a = i                for i in range(10):    process = multiprocessing.Process(target=func, args=([i, num, num_array]), daemon=False) # daemon表示守护主进程，这里为了测试杀死进程，将其关闭    process.start()time.sleep(0.2) #等待进程运行pirnt(num)print(num_array[0])#杀死进程for id in process_id:    os.kill(int(id), signal.SIGKILL)

二、线程（默认数组、字典等变量全局共享，可以直接在方法内调用全局变量值，而无需传递）

from threading import ThreadthreadId = []stop_threads = False #判定符，为true时，退出线程方法，即杀死线程array = [1,2,3,4,5]def func(i):    while True:        print("the {} dog".format(i))        array[i] = i + 2        if stop_threads:            breakfor i in range(len(array)):    thread = Thread(target=func, args=([i,]), daemon=False) # 关闭守护    thread.start()    threadId.append(thread) # 记录线程对象time.sleep(0.5)print(array)stop_threads = True  # 判定符开启for t1 in threadId:    t1.join() # 阻塞，等子线程运行完，在运行主线程    print('thread killed')threadId = []  # 置空线程池stop_threads = False # 判定符关闭

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