创建多个任务

#导入模块
from multiprocessing import Process
from time import sleep
#创建进程调用函数
def work1(interval):
    print('执行work1')
    sleep(interval)
    print('end work1')
def work2(interval):
    print('执行work2')
    sleep(interval)
    print('end work2')
def work3(interval):
    print('执行work3')
    sleep(interval)
    print('end work3')
if __name__=='__main__':
    print('执行主进程')
    #创建进程对象
    p1 = Process(target=work1,args=(4,))
    p2 = Process(target=work2,args=(3,))
    p3 = Process(target=work3,args=(2,))
    #启动进程
    p1.start()
    p2.start()
    p3.start()
    p1.join()
    p2.join()
    p3.join()
    print('p1.name:',p1.name)
    print('p2.name:',p2.name)
    print('p3.name:',p3.name)
    print('主进程结束')

执行主进程
执行work1
执行work2
执行work3
end work3
end work2
end work1
p1.name: Process-1
p2.name: Process-2
p3.name: Process-3
主进程结束