Python中的多进程学习

import timeimport randomfrom multiprocessing import Processdef piao(name):    print('%s piao' %name)    time.sleep(random.randrange(1,5))    print('%s piao end' %name)p1=Process(target=piao,args=('e',)) #必须加,号p2=Process(target=piao,args=('a',))p3=Process(target=piao,args=('w',))p4=Process(target=piao,args=('y',))p1.start()p2.start()p3.start()p4.start()print('主线程')

实验结果：

主线程w piaoy piaoa piaoe piaow piao ende piao endy piao enda piao end