from machine import Pin
from time import sleep

led_r = Pin(1, Pin.OUT)  # 红色LED
led_g = Pin(0, Pin.OUT)  # 绿色LED
button_r = Pin(2, Pin.IN, Pin.PULL_UP)  # 红色按钮，内部上拉电阻，按下为0
button_g = Pin(3, Pin.IN, Pin.PULL_DOWN)  # 绿色按钮，内部下拉电阻，按下为1

r_pressed = False
g_pressed = False

def toggle_led(led):
    led.value(not led.value())

def debounced_button_state(button):
    state = button.value()
    for _ in range(3):  # 增加3次检测以进行防抖
        if button.value() != state:
            return None
        sleep(0.01)  # 等待10ms
    return state

while True:
    r_state = debounced_button_state(button_r)
    if r_state == 0 and not r_pressed:  # 红色按钮按下且之前未按下
        r_pressed = True
        toggle_led(led_r)
        sleep(1)  # 间隔一秒
    elif r_state == 1 and r_pressed:  # 红色按钮释放且之前已按下
        r_pressed = False

    g_state = debounced_button_state(button_g)
    if g_state == 1 and not g_pressed:  # 绿色按钮按下且之前未按下
        g_pressed = True
        toggle_led(led_g)
        sleep(1)  # 间隔一秒
    elif g_state == 0 and g_pressed:  # 绿色按钮释放且之前已按下
        g_pressed = False
        sleep(1)  # 间隔一秒，让两种颜色的小灯的显示方式为间隔