interface _test.py 文件源码

def new_element(msg):
    global last_message
    if msg.data!=last_message:
        last_message = msg.data
        received_msg = String()
        received_msg.data = "receives: " + msg.data
        pub_reception.publish(received_msg)
        p1.update_trace(msg.data)
        p1.mainframe.tkraise()

################################################ for the trace