擅长:python、mysql、java
<pre><code>led_powered = False
def setup():
GPIO.setmode(GPIO.BOARD)
GPIO.setup(pin, GPIO.OUT)
def teardown():
GPIO.cleanup()
def power_led():
GPIO.output(7, GPIO.HIGH)
global led_powered
led_powered = True
def unpower_led():
GPIO.output(7, GPIO.LOW)
global led_powered
led_powered = False
def controlCallBack(xboxControlId, value):
print "Control Id = {}, Value = {}".format(xboxControlId, value)
if xboxControlId == 6 and value == 1:
if led_powered:
unpower_led()
else:
power_led()
</code></pre>
<p>在程序开始时调用setup(),在程序结束时调用teardown()。在</p>