import os, time, random
from multiprocessing import Pool
def task(name):
print('working name{}, ID：{}'.format(name, os.getpid()))
start = time.time()
time.sleep(random.random() * 3)
end = time.time()
print('working down name{}, ID:{}'.format(name, (end - start)))
if __name__ == '__main__':
print('now is main process,ID:{}'.format(os.getpid()))
print('------------------------------------')
p = Pool(4)
for i in range(1, 6):
p.apple_async(task, args(i, ))
p.close()
print('the son_process is start')
p.join()
print('-----------------------------------')
print('all process was runned, now is main process,ID:{}'.format(
os.getpid()))
