在按下鍵時記錄（獲取）鼠標單擊位置，並在python中釋放相同的鍵時停止記錄

Question

我正在創建一個腳本，如果用戶按f7鍵，它將開始記錄鼠標的點擊，當他釋放按鈕時，它應該停止，除非用戶關閉程序，否則這種情況會發生。

盡管按f7鍵，腳本仍顯示“無”，而不顯示單擊位置和“ f7”，而是顯示“無”。

在on_press函數中，當我們打印值時，它顯示為“ f7”，但是在on_click函數中單擊鼠標按鈕時，則顯示為“無”。

這是代碼

from pynput import mouse, keyboard
from pynput.keyboard import Key, Listener
import pickle

x_pos = []
y_pos = []
both_pos = []

pressed_key = None

def on_press(key):
    if (key==keyboard.Key.f7):
        pressed_key = "f7"
    else:
        pressed_key = None

def on_release(key):
    pass

def on_click(x, y, button, pressed):
    if pressed:
        #print ("{0} {1}".format(x,y))
        print(pressed_key)
        if pressed_key == "f7":
            x_pos.append("{0}".format(x,y))
            y_pos.append("{1}".format(x,y))
            #print("test" + x_pos + y_pos)
            print (x_pos + y_pos)
        #both_pos = x_pos, y_pos
        else:
            pass
        print (x_pos + y_pos)


mouse_listener = mouse.Listener(on_click=on_click)
mouse_listener.start()

with keyboard.Listener(on_press = on_press, on_release = on_release) as listener:
    try:
        #listener.start()
        listener.join()
    except MyException as e:
        print('Done'.format(e.args[0]))

Answer 1

找到了問題。 因為在on_press中我沒有使用全局pressed_key，所以它正在創建局部變量。

這是工作代碼。

from pynput import mouse, keyboard
from pynput.keyboard import Key, Listener
import pickle

x_pos = []
y_pos = []
both_pos = []

pressed_key  = None

def on_press(key):
    global pressed_key
    if (key==keyboard.Key.f7):
        pressed_key = "f7"
        print(pressed_key)
    else:
        pressed_key = None

def on_release(key):
    global pressed_key
    pressed_key = None

def on_click(x, y, button, pressed):
    if pressed:
        #print ("{0} {1}".format(x,y))
        print(pressed_key)
        if pressed_key == "f7":
            x_pos.append("{0}".format(x,y))
            y_pos.append("{1}".format(x,y))
            #print("test" + x_pos + y_pos)
            print (x_pos + y_pos)
        #both_pos = x_pos, y_pos
        else:
            pass
        print (x_pos + y_pos)


mouse_listener = mouse.Listener(on_click=on_click)
mouse_listener.start()

with keyboard.Listener(on_press = on_press, on_release = on_release) as listener:
    try:
        #listener.start()
        listener.join()
    except MyException as e:
        print('Done'.format(e.args[0]))