python 多线程

今日使用库——threading

 今日参考文章：菜鸟教程——python多线程

 1. 首先创建一个类

class MyThread(threading.Thread):
    def __init__(self, thread_id, name, speed):
        threading.Thread.__init__(self)
        # 线程 id
        self.thread_id = thread_id
        # 线程 名称
        self.name = name
        # 线程执行速度
        self.speed = speed

    # run 方法
    def run(self) -> None:
        print("线程执行: [id-", self.thread_id, ",名称:", self.name, "]")
        print_time(self.name, self.speed)
        print("线程结束: [id-", self.thread_id, ",名称:", self.name, "]")

在 run 方法中，就是线程执行的...

可以将 run 方法看作 主程序的 main 方法

2. 创建类的实例

thread1 = MyThread(1, "线程1", 2)
thread2 = MyThread(2, "线程2", 1)

运行效果：

3. 总体代码

 

#!/usr/bin/python
# -*- coding: UTF-8 -*-

import threading
import time


class MyThread(threading.Thread):
    def __init__(self, thread_id, name, speed):
        threading.Thread.__init__(self)
        # 线程 id
        self.thread_id = thread_id
        # 线程 名称
        self.name = name
        # 线程执行速度
        self.speed = speed

    # run 方法
    def run(self) -> None:
        print("线程执行: [id-", self.thread_id, ",名称:", self.name, "]")
        print_time(self.name, self.speed)
        print("线程结束: [id-", self.thread_id, ",名称:", self.name, "]")


def print_time(thread_name, delay):
    count = 0

    while count < 5:
        time.sleep(delay)
        count += 1
        print("{} : {}".format(thread_name, time.ctime(time.time())))


# 创建线程
thread1 = MyThread(1, "线程1", 2)
thread2 = MyThread(2, "线程2", 1)

thread1.start()
thread2.start()