当我在thinkter库中运行以下代码时，我从get_tk_widget（）得到一个属性错误。我得到'canvas object has no attribute get_tk_widget'错误。我可以写什么来代替这段代码？

try:
        if canvas:
            canvas.get_tk_widget().grid_forget()

x

canvas = FigureCanvasTkAgg(fig, master=root)
        canvas_widget = canvas.get_tk_widget()
        canvas_widget.grid(row=8, columnspan=4, sticky="nsew")

scrollbar = tk.Scrollbar(root, orient="horizontal", command=canvas_widget.get_tk_widget().xview)
        scrollbar.grid(row=9, columnspan=4, sticky="ew")
        canvas_widget.get_tk_widget().configure(xscrollcommand=scrollbar.set)

canvas_widget.get_tk_widget().bind('<Configure>', on_canvas_configure)

的数据
GUI屏幕打开，但是这里的get_tk_widget给出了属性错误。