在 pynput 的鼠标监听器中使用 while 循环

Question

即使我松开鼠标左键，while 循环也会返回 true，这会使按下 = false。我不知道如何跳出循环来更新按下的值。

from pynput import keyboard
from pynput import mouse
from pynput.mouse import Button, Controller

control = Controller()

def on_click(x, y, button, pressed):
    if button == mouse.Button.left:
        while pressed == True:
            print(pressed)

with mouse.Listener(
        on_click=on_click) as listener:
    listener.join()

有什么方法可以更新循环，让它知道什么时候按下 = false。

Answer 1

如果你真的需要运行一些循环，那么你必须在分隔的 thread 中执行它，因为如果你在 on_click 中运行它，那么你会阻止 listener 并且它不能运行另一个 on_click

on_click 应该在thread 中开始循环，并使用全局变量来控制何时停止。

from pynput import mouse
from pynput.mouse import Button, Controller
import threading

control = Controller()

running = False

def process():
    print('start')
    count = 0
    while running:
        print(count)
        count += 1
    print('stop')
    
def on_click(x, y, button, pressed):
    global running # to assing value to global variable (instead of local variable)
    
    if button == mouse.Button.left: 
        if pressed:
            if not running:  # to run only one `process`
                running = True
                threading.Thread(target=process).start()
        else:
            running = False

with mouse.Listener(on_click=on_click) as listener:
    listener.join()