启动程序后，它冻结，并显示Windows没有响应。我认为这是我的更新功能，使这个问题。我想一些指导如何解决它。

def anime(self):
        self.toplevel = tk.Toplevel(self)
        self.toplevel.title("Animations")
        self.toplevel.geometry('600x500')
        self.caisse = ttk.Label(self.toplevel, text = 'Numero appele: ')
        self.caisse.place(x = 1, y =20)
        self.caisse.config(font = ('calibri', 10, 'bold'),background = 'green', foreground ='white')
        self.numerotop = ttk.Label(self.toplevel, text = self.numero_box.get())
        self.numerotop.config(font = ('calibri', 10, 'bold'),background = 'gray', foreground ='black')
        self.numero_box.focus()
        self.img = ImageTk.PhotoImage(Image.open("C:/Users/hp/Desktop/Fond.jpeg").resize((300,350)))
        #self.img = ImageTk.PhotoImage(Image.open("/Users/test/Desktop/koul.jpg").resize((300,50)))
        self.imga = ttk.Label(self.toplevel, image = self.img)
        self.imga.config()
        self.imga.pack()

        def update():
            #self.date_now = datetime.now().strftime("%d-%m-%Y %H:%M:%S")
            self.date_now = datetime.now().strftime("%d-%m-%Y")
            self.time_now = datetime.now().strftime("%H:%M")
            self.date_label = ttk.Label(self.toplevel, text = self.date_now)
            self.date_label.place(x = 450, y= 10)
            self.date_label.after(1000, update)
            self.date_label.config(font = ('calibri', 20, 'bold'),background = 'gray', foreground ='black')

            self.time_label = ttk.Label(self.toplevel, text = self.time_now)
            self.time_label.place(x = 450, y= 40)
            self.time_label.after(1000, update)
            self.time_label.config(font = ('calibri', 20, 'bold'),background = 'gray', foreground ='black')

        update()

我试着做一个有标签显示日期和时间的窗口，时间应该每1000ms更新一次。它没有更新日期和时间，而是冻结了整个程序。