multithreading多线程，多进程

 1 import random
 2 import threading
 3 
 4 results = []
 5 
 6 def compute():
 7     #random.randint(1,100) 返回一个随机值
 8     results.append(sum([random.randint(1,100) for i in range(1000000)]))
 9 #开启八个线程
10 workers = [threading.Thread(target=compute) for i in range(8)]
11 
12 for worker in workers:
13     worker.start()
14 
15 for worker in workers:
16     worker.join()
17 
18 print results
19 
20 
21 >>> 
22 [50525916, 50480384, 50472573, 50504944, 50472008, 50478334, 50525776, 50519455]
23 >>> sum([50525916, 50480384, 50472573, 50504944, 50472008, 50478334, 50525776, 50519455])
24 403979390
25 >>> 

 1 import multiprocessing
 2 import random
 3 
 4 def compute():
 5     return sum(
 6             [random.randint(1,100) for i in range(1000000)])
 7 
 8 #创建8个进程pool池
 9 pool = multiprocessing.Pool(8)
10 
11 #开始八个进程
12 print pool.map(compute,range(8))