如何在Tkinter Python中重置比例尺

Question

我在tkinter GUI中创建了一个比例尺。我想在单击按钮时重置比例尺

def Reset():
    Spd.set(0)

rad1 = Scale(self, orient=HORIZONTAL, resolution=1, length=550, width=15, variable=Spd, sliderlength=10, from_=0, to=max(Spd_BP), tickinterval=30, font=('Helvetica', 10, 'bold'), command= SpdData)
rad1.grid(row=2, column=3, sticky=tk.W)

tk.Button(self, padx=18, bd=7, font=('Helvetica', 13, 'bold'), width=7, command=Reset, text="Reset",
                  bg="#F18F49").grid(row=18, column=2, pady=12)

代码仍然不起作用