Method add

官方samples/demo.py:46–51

(self, action)

    def reset(self):
        self.links = {}
    def add(self, action):
        # add an action to the manager.  returns tags to use in
        # associated text widget
        tag = "link-%d" % len(self.links)
        self.links[tag] = action
        return "link", tag

    def _enter(self, event):
        self.text.config(cursor="hand2")