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python - 关于python中鼠标和键盘事件的问题

问题描述

from pynput.keyboard import Key, Controller as KeyboardController
from pynput.mouse import Button, Controller as MouseController
from pynput.keyboard import Key, Listener

keyboard = KeyboardController()
mouse = MouseController()

def on_press(key):
    if key.char == 'q':
        print(mouse.position)
        return True

# Collect events until released
with Listener(
        on_press=on_press) as listener:
    listener.join()

如果我按下字母 q，我制作了这个简单的脚本来返回鼠标的位置。它工作正常，直到我按下不是字符的东西，例如 Enter 键。我一直在四处寻找，但找不到实现如果“单击某些按钮”来做到这一点的好方法。我怎样才能解决这个问题？

标签： pythonpynput

解决方案

显然，返回的键对象on_press没有char属性，除非您实际按下了字符键。因此，您必须检查该属性是否存在。您可以使用hasattr做到这一点：

from pynput.keyboard import Key, Controller as KeyboardController
from pynput.mouse import Button, Controller as MouseController
from pynput.keyboard import Key, Listener

keyboard = KeyboardController()
mouse = MouseController()

def on_press(key):
    if hasattr(key, 'char'):    
        if key.char == 'q':
            print(mouse.position)
            return True

# Collect events until released
with Listener(
        on_press=on_press) as listener:
    listener.join()

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