#from multiprocessing import process,multiprocessing
#import threading,time
#import os,time
#print(multiprocessing.cpu_count());
from multiprocessing import pool
import os, time, random
#cpu_count=multiprocessing.cpu_count()
def video_work(n):
print("video start")
for i in range(4):
print(' video:%s' % time.time())
print('video end')
def voice_work(n):
print('voice start')
for i in range(4):
print(' voice:%s' % time.time())
print('voice end')
def text_work(n):
print('text start')
for i in range(4):
print(' text:%s' % time.time())
print('text end')
if __name__=='__main__':
print("movie start")
p=pool(3)
print("movie end")
p.close()
p.join()
os._exit(0);
#下面是多執行緒
def video_work(n):
print("video start")
for i in range(4):
print(' video:%s' % time.time())
print('video end')
def voice_work(n):
print('voice start')
for i in range(4):
print(' voice:%s' % time.time())
print('voice end')
def text_work(n):
print('text start')
for i in range(4):
print(' text:%s' % time.time())
print('text end')
vi=threading.thread(target=video_work, args=(5,))
vo=threading.thread(target=voice_work, args=(5,))
te=threading.thread(target=text_work, args=(5,))
vi.start()
vo.start()
te.start()
vi.join()
vo.join()
te.join()
下面賦上程序和執行緒的結果對比：
執行緒：video start
video:1514341023.8669481
video:1514341023.866982
video:1514341023.8669922
video:1514341023.867
video end
voice start
voice:1514341023.867081
voice:1514341023.867098
voice:1514341023.867109
voice:1514341023.867122
voice end
text start
text:1514341023.867318
text:1514341023.86733
text:1514341023.8673432
text:1514341023.8673549
text end
[finished in 0.2s]
程序：movie start
movie end
video start
video:1514340229.850396
video:1514340229.850455
video:1514340229.850463
voice start
video:1514340229.8504698
video end
voice:1514340229.850525
voice:1514340229.8505862
voice:1514340229.8505971
voice:1514340229.850604
voice end
text start
text:1514340229.851182
text:1514340229.85122
text:1514340229.85123
text:1514340229.851239
text end
[finished in 0.3s]
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