使用Tkinter时线程停止中的循环

import tkinter as tk

class App:
    def __init__(self, root):
        self.root = root
        self.running = False

        self.start_button = tk.Button(root, text="Start", command=self.start_loop)
        self.start_button.pack()

        self.stop_button = tk.Button(root, text="Stop", command=self.stop_loop)
        self.stop_button.pack()

    def start_loop(self):
        self.running = True
        self.loop()

    def stop_loop(self):
        self.running = False

    def loop(self):
        if self.running:
            # 循环执行的代码
            print("Looping...")
            self.root.after(1000, self.loop)  # 每隔1秒执行一次loop函数

root = tk.Tk()
app = App(root)
root.mainloop()