以下是参考答案：
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from gpiozero import LEDBoard,Button from time import sleep from signal import pause #from tkinter import * button3 = Button(16) button2 = Button(20) button4 = Button(21) button1 = Button(26) leds = LEDBoard(2, 3, 4, 14, 17,27,22,23,active_high=False) M7G= [ (0, 0, 0, 0, 0,0, 0,0), (1, 1, 1, 1,1, 1,0,0), (0, 1, 1, 0, 0,0, 0,0), (1, 1, 0, 1, 1,0, 1,0), (1, 1, 1, 1,0, 0,1,0), (0, 1, 1, 0,0, 1,1,0), (1, 0, 1, 1,0, 1,1,0), (1, 0, 1, 1,1, 1,1,0), (1, 1, 1, 0,0, 0,0,0), (1, 1, 1, 1,1, 1,1,0), (1, 1, 1, 1,0, 1,1,0), ] leds.value = M7G[0] #初始值全消隐 lockval = 0 #记录锁定状态变量 #定义Button的回调函数 def helloButton(): global lockval if button1.is_pressed: if lockval == 0: leds.value = M7G[2] lockval = 1 elif button2.is_pressed: if lockval == 0: leds.value = M7G[3] lockval = 1 elif button3.is_pressed: if lockval == 0: leds.value = M7G[4] lockval = 1 elif button4.is_pressed: #复位按键 lockval=0 leds.value = M7G[0] #print(button1.value) button1.when_pressed = helloButton button2.when_pressed = helloButton button3.when_pressed = helloButton button4.when_pressed = helloButton pause() |
完美版程序：
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from gpiozero import LEDBoard,Button from time import sleep from signal import pause #from tkinter import * button3 = Button(16) button2 = Button(20) button4 = Button(21) button1 = Button(26) leds = LEDBoard(2, 3, 4, 14, 17,27,22,23,active_high=False) M7G= [ (0, 0, 0, 0, 0,0, 0,0), (1, 1, 1, 1,1, 1,0,0), (0, 1, 1, 0, 0,0, 0,0), (1, 1, 0, 1, 1,0, 1,0), (1, 1, 1, 1,0, 0,1,0), (0, 1, 1, 0,0, 1,1,0), (1, 0, 1, 1,0, 1,1,0), (1, 0, 1, 1,1, 1,1,0), (1, 1, 1, 0,0, 0,0,0), (1, 1, 1, 1,1, 1,1,0), (1, 1, 1, 1,0, 1,1,0), ] leds.value = M7G[0] #初始值全消隐 lockval = 0 #记录锁定状态变量 #定义Button的回调函数 def helloButton(): global lockval if lockval == 0: if button1.is_pressed: leds.value = M7G[2] elif button2.is_pressed: leds.value = M7G[3] elif button3.is_pressed: leds.value = M7G[4] lockval=1 #状态锁定 if button4.is_pressed: #复位按键 lockval=0 leds.value = M7G[0] #print(button1.value) button1.when_pressed = helloButton button2.when_pressed = helloButton button3.when_pressed = helloButton button4.when_pressed = helloButton pause() |
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