如何通過諸如 之類的按鍵來打破這個(gè)循環(huán)Esc？此示例捕獲擊鍵，但從未將變量傳遞到 while 循環(huán)中。from pynput import keyboardcount = 0stop = 0while True: def press_callback(key): if key == keyboard.Key.esc: def stop_loop(): stop = 1 return stop print('You pressed "escape"! You must want to quit really badly...') stop = stop_loop() return stop count +=1 print (count) if stop == 1: break if count == 1: l = keyboard.Listener(on_press=press_callback) l.start()我使用的是 Ubuntu 18.04。
2 回答
暮色呼如
TA貢獻(xiàn)1853條經(jīng)驗(yàn) 獲得超9個(gè)贊
stop_loop像這樣更新你的方法：
def stop_loop():
? global stop
? stop = 1
? return stop
如果您不聲明，那么您將在方法內(nèi)創(chuàng)建一個(gè)新的局部變量global stop，而不是更新在文件開頭定義的變量。stopstopstop_loop
蕪湖不蕪
TA貢獻(xiàn)1796條經(jīng)驗(yàn) 獲得超7個(gè)贊
這是最終的工作解決方案：
from pynput import keyboard
count = 0
stop = 0
def press_callback(key):
if key == keyboard.Key.esc:
def stop_loop():
global stop
stop = 1
return stop
print('Get Out')
stop = stop_loop()
return stop
l = keyboard.Listener(on_press=press_callback)
l.start()
while True:
count += 1
print (count)
if stop == 1:
break
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