如何使用带有多个命令的类在tkinter中获取某个按钮被按下时要更改的值

import tkinter as tk

class ValueChanger:
    def __init__(self, root):
        self.root = root
        self.value = 0

        self.label = tk.Label(root, text="当前值：0")
        self.label.pack()

        self.button = tk.Button(root, text="增加", command=self.increment_value)
        self.button.pack()

    def increment_value(self):
        self.value += 1
        self.label.configure(text="当前值：" + str(self.value))

root = tk.Tk()
value_changer = ValueChanger(root)
root.mainloop()