python 多线程threading

最新推荐文章于 2024-08-30 15:05:50 发布

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本文介绍了一个实用的Python多线程教程，通过继承threading.Thread类实现多线程功能。文章提供了一个具体示例，展示了如何创建和启动多个线程，并使主线程等待这些线程完成。

部署运行你感兴趣的模型镜像

这里的多线程写的很nice, 例子很容易懂

我的例子如下：

multiThreadingRun继承threading.Thread的class只需要override __init__和run方法，使用时，实例化multiThreadingRun并传入threadName，方法func, 方法参数*args即可

import threading
import time
class multiThreadingRun(threading.Thread):
	def __init__(self, threadName, func, *args):
		threading.Thread.__init__(self)
		self._func = func
		self._args = args
		self.threadName = threadName

	def run(self):
		print("Starting " + self.threadName)
		self._func(*self._args)
		print("Exiting " + self.threadName)


def print_time(threadName, counter, delay):
	while counter:
		time.sleep(delay)
		print("%s: %s"%(threadName, time.ctime(time.time())))
		counter -= 1

aa_list = ["thread1", "thread2", "thread3"]
my_threadings = []
for aa in aa_list:
	my_threading = multiThreadingRun(aa, print_time, aa, 5, 1)
	my_threading.start()
	my_threadings.append(my_threading)

for my_threading in my_threadings:
	my_threading.join()

输出：

Starting thread1
Starting thread2
Starting thread3
thread2: Tue Aug 21 13:00:49 2018
thread3: Tue Aug 21 13:00:49 2018
thread1: Tue Aug 21 13:00:49 2018
thread3: Tue Aug 21 13:00:50 2018
thread2: Tue Aug 21 13:00:50 2018
thread1: Tue Aug 21 13:00:50 2018
thread3: Tue Aug 21 13:00:51 2018
thread2: Tue Aug 21 13:00:51 2018
thread1: Tue Aug 21 13:00:51 2018
thread2: Tue Aug 21 13:00:52 2018
thread1: Tue Aug 21 13:00:52 2018
thread3: Tue Aug 21 13:00:52 2018
thread3: Tue Aug 21 13:00:53 2018
Exiting thread3
thread2: Tue Aug 21 13:00:53 2018
Exiting thread2
thread1: Tue Aug 21 13:00:53 2018
Exiting thread1
[Finished in 5.4s]

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