在Python中返回到main

Question

我是Python命令的新手。在我的程序命令，我需要程序返回主时，磁门传感器打开。这意味着当门传感器打开时，程序将循环到第一个命令行。有人能帮我一下吗?下面是我的程序的命令行。

#function for door closing
def door_open():
    print("Door Open")
# function for the door closing
def door_close():
    print("Door Close")
def main():
 while True:
    if GPIO.input(door_sensor): # if door is opened
        if (sensorTrigger):
           door_open() # fire GA code
           sensorTrigger = False # make sure it doesn't fire again
        if not io.input(door_sensor): # if door is closed
            if not (sensorTrigger):
                door_close() # fire GA code
                sensorTrigger = True # make sure it doesn't fire again
door_close_thread = threading.Thread(target=door_close)
door_close_thread.daemon =  True
door_close_thread.start()
Current_State  = 0
Previous_State = 0
try:
  print "Waiting for PIR to settle..."
  # Loop until PIR output is 0
  while GPIO.input(GPIO_PIR)==1:
    Current_State  = 0
  print "  Ready"
  while True :
    # Read PIR state
    Current_State = GPIO.input(GPIO_PIR)
    if Current_State==1 and Previous_State==0:
      # PIR is triggered
      print "  Motion detected!"
      # Record previous state
      Previous_State=1
    if not Current_State==0 and Previous_State==1:
      # PIR has returned to ready state
      print "  Ready"
      Previous_State=0
# Wait for 10 milliseconds
time.sleep(0.01)
except KeyboardInterrupt:
  print "  Quit"
  # Reset GPIO settings
  GPIO.cleanup()

Answer 1

尝试递归调用main函数。