#!/usr/bin/envpython#coding=utf-8importrospyfromstd_msgs.msgimportStringi=0deftalker():globalipub=rospy.Publisher('nav_goal',String,queue_size=10)rospy.in...

 #!/usr/bin/envpython#coding=utf-8importrospyfromstd_msgs.msgimportStringdeftalker():pub=rospy.Publisher('nav_goal',String,queue_size=10)rospy.init_node('t...