32.多线程线程

重整旗鼓~2024-12-22 16:40

线程之间内存是共享的。

使用threading模块实现多线程编程。

import threading

thread_obj = threading.Thread([group [, target [, name[, args [, keyargs]]]]] )

group: 暂时无用，未来功能的预留参数

target: 执行的目标任务名，就是函数的名称

name: 线程名，一般不用设置

args: 以元组的方式给执行任务传参

kwargs: 以字典的方式给执行任务传参

启动线程，让线程开始工作

thread_obj.start()

python 复制代码

import time
import threading


def sing():
    while True:
        print("我在唱歌，啦啦啦")
        time.sleep(1)


def dance():
    while True:
        print("我在跳舞，哗哗哗")
        time.sleep(1)


thread1 = threading.Thread(target=sing)
thread2 = threading.Thread(target=dance)
thread1.start()
thread2.start()

给线程传参args

python 复制代码

import time
import threading


def sing(msg):
    while True:
        print(msg)
        time.sleep(1)


def dance(msg):
    while True:
        print(msg)
        time.sleep(1)


thread1 = threading.Thread(target=sing, args=('我在唱歌...',))
thread2 = threading.Thread(target=dance, args=("我在跳舞...",))
thread1.start()
thread2.start()

给线程传参kwargs

python 复制代码

import time
import threading


def sing(msg):
    while True:
        print(msg)
        time.sleep(1)


def dance(msg):
    while True:
        print(msg)
        time.sleep(1)


thread1 = threading.Thread(target=sing, kwargs={'msg': '我在唱歌'})
thread2 = threading.Thread(target=dance, kwargs={'msg': '我在跳舞'})
thread1.start()
thread2.start()