Python 树莓派 引脚

#!/usr/bin/python3

import RPi.GPIO as GPIO
import time

GPIO.setmode(GPIO.BCM)
GPIO.setup(18, GPIO.OUT)
GPIO.output(18, GPIO.LOW)
blinks = 0
print('开始闪烁')
while (blinks < 5):
    GPIO.output(18, GPIO.HIGH)
    time.sleep(1.0)
    GPIO.output(18, GPIO.LOW)
    time.sleep(1.0)
    blinks = blinks + 1
GPIO.output(18, GPIO.LOW)
GPIO.cleanup()
print('结束闪烁')