Python多线程编程threading类

ゝ一世哀愁。 2023-02-27 05:58 45阅读 0赞

# Python多线程编程threading类 #

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## 方式一 ##

**使用python自带的线程类threading创建线程：**

import threading
    import time
    
    
    def thread_1_entry(count):
        while count > 0:
            print('count:%d' % count)
            count -= 1
            time.sleep(1)
        return
    
    
    def thread_2_entry():
        print(threading.current_thread().name)
        return
    
    
    '''创建线程参数说明： target：线程入口函数 name ：线程名称 args : 线程入口函数的参数 '''
    thread_1 = threading.Thread(target=thread_1_entry, name='thread 1', args=(5,))
    thread_2 = threading.Thread(target=thread_2_entry, name='thread 2')
    
    # 启动线程
    thread_1.start()
    thread_2.start()
    
    # 等待线程执行完毕退出
    thread_1.join()
    thread_2.join()

**执行结果：**  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxMTUzNDcxNTAz_size_16_color_FFFFFF_t_70]

## 方式二 ##

**继承threading类，覆写run函数：**

import threading
    import time
    
    
    class MyThread(threading.Thread):
        def __init__(self, name=None):
            threading.Thread.__init__(self, name=name)
    
        def run(self):
            count = 5
            while count > 0:
                print('%s:%d' % (self.name, count))
                count -= 1
                time.sleep(1)
    
    
    mythread_1 = MyThread(name='MyThread-ONE')
    mythread_2 = MyThread(name='MyThread-TWO')
    
    mythread_1.start()
    mythread_2.start()
    
    mythread_1.join()
    mythread_2.join()

**执行结果：**  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxMTUzNDcxNTAz_size_16_color_FFFFFF_t_70 1]

--------------------

ends…

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[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxMTUzNDcxNTAz_size_16_color_FFFFFF_t_70 1]: /images/20230209/246342c5fece42b5b19ee6d63280e12e.png