Welcome to wxpython (1)-detailed examples

#  ! /Usr/bin/Python  #  -*-<Coding = UTF-8> -*-  Import  WX  Class  Myframe (wx. Frame ):  Def   _ Init __  (Self ):  """  Defines the _ init _ method, which is equivalent to constructors of other object-oriented languages. It is automatically called when a class object is created.  """          # Why do I need to call the initialization function of the parent class? Of course, the initialization of the parent class is also automatically called. Wx. Frame. _ Init __ (Self, none,-1, "  Myframe  " , Size = (300,300 ))  #  Create a panel control Panel = wx. Panel (self,-1 )  #  Event binding type: WX. Motion, mainly used to detect mouse movement.  Panel. BIND (wx. evt_motion, self. onmove)  # Create a static file to display information on the panel. Wx. statictext (panel,-1, "  POs:  " , Pos = (10, 12 ))  """  Create a text input box and assign this object to self. posctrl. I have never understood why I should assign a value to self. posctrl. it seems that the variable defined in the _ init _ method can be referenced in the whole class method. In the onmove () method below, I don't know whether to understand it, right.  """  Self. posctrl = Wx. textctrl (panel,-1, "" , Pos = (40, 10 ))  Def Onmove (self, event ):  """  Self. onmove is called by the BIND function. However, this place has always been very abrupt. It is not clear how the event is passed and operated.  """  Pos = Event. getposition ()  #  Display the current cursor position in the text box Self. posctrl. setvalue ( "  % S, % s  " % (Pos. X, POS. y ))  If   _ Name __ = '  _ Main __  '  : App = Wx. pysimpleapp () Frame = Myframe () frame. Show (true) app. mainloop ()