Python多线程编程threading类

Python多线程编程threading类

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：

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：

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