text: #!/usr/bin/env python
  import rospy
  from std_msgs.msg import Int32
  
  if __name__ =='__main__':
  	rospy.init_node('count')
  	pub = rospy.Publisher('count_up', Int32, queue_size=1)
  	rate = rospy.Rate(1)
  	n = 0
  	while not rospy.is_shutdown():
  		n +=1
  		if n == 11:
  			n=0
  		pub.publish(n)
  		rate.sleep()
  
  