python在多线程时，假如写了一个叫iamthreading的继承了多线程的类，如何启动它，就是个问题了。

这是什么问题呢？启动不这样嘛？

for i in xrange(threads_num):
  t = iamthreading()
  threads.append(t)
for i in xrange(threads_num):
  threads[i].start()
for i in xrange(threads_num):
  threads[i].join()

但是，不觉得太难看了吗？长久使用后，无法忍受，太难看了！

于是来个潇洒的->

while 1:
  iamthreading().start()

于是，我这么写:

       

        threads = [iamthreadingr() for i in xrange( threads_num )]
        if [(j.setDaemon( True ), j.start()) for j in threads] == [i.join() for i in threads]:
                print 'all wars are civil wars,because all men are brothers.'

看看python会不会这么做：

>>> from Queue import Queue
>>> q = Queue(0)
>>> q.put(9)
>>> q.put(8)
>>> q.put(7)
>>> q.put(6)
>>> if [1, 2, 3] == [q.get() for i in xrange(3)]:
...   print "hei hei"
...
>>> q.get()
6
>>>

再试一试：

>>> from Queue import Queue
>>> q = Queue(0)
>>> q.put(9)
>>> q.put(8)
>>> q.put(7)
>>> q.put(6)
>>> if [1,2] == [q.get() for i in xrange(3)]:
...   print "hei hei"
...
>>> q.get()
6
>>>

优美地启动多线程[Python]