TKINTER使用与参数的单个功能回调来选择该做什么

Question

我编写了一个代码，该代码在保留按钮时会在循环中执行函数，并在释放按钮时停止执行。见下文。

class SampleApp(tk.Tk):
    def __init__(self, *args, **kwargs):

        tk.Tk.__init__(self, *args, **kwargs)
        
        self.sch_plus_button = tk.Button(self, text="S+", command=self.sch_plus_callback)
        self.sch_plus_button.pack()
        self.sch_plus_button.bind('<Button-1>', self.sch_plus_callback)
        self.sch_plus_button.bind('<ButtonRelease-1>', self.button_stop_callback)

    def button_stop_callback(self, event):
        self.after_cancel(repeat)

    def sch_plus_callback(self, *args):
        global repeat
        try:
            # TODO find right time to send data to keep RELE ON
            repeat = self.after(200, self.sch_plus_callback, args[0])
        except IndexError:
            pass
        self.ser.write(b'\x02\x56\x81\x80\x80\x80\x80\x80\x39\x35\x04')

现在，一旦sch_plus_callback函数基本上始终做相同的事情，我会按我要按下命令，而唯一更改的是ser.write中的字符串（必须将Accoridngly更改为我要按下的按钮）我想知道是否有一种方法可以发送诸如self.sch_plus_button.bind（'＆lt; button; button; button; button-1＆gt;'，self self）之类的参数。 sch_plus_callback（“ button_1”）），然后在我的sch_plus_callback中获取参数，就像

def sch_plus_callback(self, *args):
            global repeat
            try:
                # TODO find right time to send data to keep RELE ON
                repeat = self.after(200, self.sch_plus_callback(args[0]), args[1])
            except IndexError:
                pass
            self.ser.write(string_to_send(args[0]))

我在下面尝试过的代码一样，但是，因为我的代码是如何编写的，所以它触发了recursionError：recursionError：recursionError：最大递归深度超过，所以我不知道问题如何解决

Answer 1

我发现的一种解决方案

        self.sch_plus_button = tk.Button(self, text="S+", command=lambda: self.sch_plus_callback('sch_plus'))
        self.sch_plus_button.pack()
        self.sch_plus_button.bind('<Button-1>', lambda event: self.sch_plus_callback('sch_plus', event))
        self.sch_plus_button.bind('<ButtonRelease-1>', self.button_stop_callback)

    def button_stop_callback(self, event):
        self.after_cancel(repeat)

    def sch_plus_callback(self, *args):
        global repeat
        logging.info("args are " + str(args))

        try:
            repeat = self.after(300, self.sch_plus_callback, args[0], args[1])
        except IndexError:
            pass

是args [0]是指示按钮的参数，args [1]将事件到Hendle