Question

我正在创建一个脚本，如果用户按下f7键，它将开始记录鼠标的点击，而当他释放按钮时，它应该停止，除非用户关闭程序，否则这种情况会发生。

尽管按f7键，脚本仍打印“无”，而不显示单击位置和“ f7”，而是显示“无”。

在on_press函数中，当我们打印值时，它显示为“ f7”，但是在on_click函数中单击鼠标按钮时，则显示为“无”。

这是代码

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

发现了问题。因为在on_press中我没有使用全局pressed_key，所以它正在创建局部变量。

这是工作代码。

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]))

在按下键时记录（获取）鼠标单击位置，并在python中释放相同的键时停止记录

1 个答案: