下面是一个简单的线程示例: importthreadingimporttimedefworker():print("Worker thread is starting.")time.sleep(2)# Simulating a long taskprint("Worker thread is done.")# Create a threadt=threading.Thread(target=worker)t.start()# Wait for the thread to finisht.join()print("Main thread is ...
为了解决这个问题,我们可以使用join()方法来等待其他线程或进程执行完毕。 importthreadingimporttimedeftask():time.sleep(5)print("Task completed")# Create a new threadt=threading.Thread(target=task)t.start()# Wait for the thread to finisht.join()print("All tasks completed") 1. 2. 3. 4. 5....
threading.Thread.__init__(self) self.threadID = threadID self.task = customFunction self.args = args self.output = None def run(self): self.output = self.task(self.args) 我使用这个类的原因是,一旦thread完成运行我的自定义函数(通过调用is_alive())进行检查),我就可以检索函数返回值。 我的...
programming_thread.start() progress_bar_thread.start() # Wait for both threads to finish programming_thread.join() progress_bar_thread.join() print('finished') 但由于我需要从不同的模块调用这一部分,我尝试这样实现它: main: import further_threading_test import tkinter as tk from tkinter import ...
# wait for all threads to finish foriinnloops: threads[i].join() print"***end***", ctime() if__name__=="__main__": main() #Method 2: 创建一个Thread的实例,传给它一个可调用的类对象importthreadingfromtimeimportsleep, ctime loops= [4,...
>> import thread 如果没有报错,则说明线程可用。 Python 的 threading 模块 Python 供了几个用于多线程编程的模块,包括 thread, threading 和 Queue 等。thread 和 threading 模块允许程序员创建和管理线程。thread 模块 供了基本的线程和锁的支持,而 threading 供了更高级别,功能更强的线程管理的功能。Queue 模块...
threading.Thread.__init__(self) self._queue =queuedefrun(self):#variable to keep track of when we started start_time =time.time()#While under 5 seconds..while time.time() - start_time < 5:#"Produce" a piece of work and stick it in the queue for the Consumer to process ...
thread_letters = threading.Thread(target=print_letters) # Start the threads thread_numbers.start() thread_letters.start() # Wait for both threads to finish thread_numbers.join() thread_letters.join() 在这个示例中,print_numbers和print_letters可以在不同的线程中并发运行,从而提高了整体的执行速度。
num+=1print("---in test2 g_num=%d=---"%g_num)defmain():t1=threading.Thread(target...
worker.start()# Put the tasks into the queueasa tupleforlinkinlinks:logger.info('Queueing {}'.format(link))queue.put((download_dir,link))# Causes the main thread to waitforthe queue to finish processing all the tasks queue.join()logging.info('Took %s',time()-ts)if__name__=='__main...