我有一個名為self.canvas_input_frame的畫布，其中的畫布名為self.canvas_input_image. self.canvas_input_image是實際顯示圖像的位置。我已將子元素垂直和水平滾動條附加到self.canvas_input_frame. 我的 GUI 如下圖所示：水平滾動條不完全從西向東延伸。如何解決？下面是我的代碼： def open_file_dialog(self):    self.filename = filedialog.askopenfilename(initialdir = "C:/Users/alyss/AppData/Local/Programs/Python/Python36/Damaged Text Document Virtual Restoration", title = "Select A File", filetype =  (("png", "*.png"),("jpeg", "*.jpg"),  ("pdf", "*.pdf"), ))    #Create Canvas Frame for Input Document    self.canvas_input_frame = tk.Canvas(self.main_canvas,  bg = "blue")    self.canvas_input_frame.configure(width=456, height=470)           self.canvas_input_frame.pack(side="left", padx=10,pady = 10)    #Load Input Image    load = Image.open(self.filename)          render = ImageTk.PhotoImage(load)    self.width, self.height = load.size    self.canvas_input_image = tk.Canvas(self.canvas_input_frame,bg = "green") # how to render image in canvas    self.canvas_input_image.configure(width=390, height=470)    self.canvas_input_image.image = render    self.canvas_input_image.create_image(0,0,anchor="nw",image=self.canvas_input_image.image)    self.canvas_input_image.pack(side="left")    self.vsb_canvas_input_frame = tk.Scrollbar( self.canvas_input_frame, orient="vertical", command=self.canvas_input_image.yview)    self.hsb_canvas_input_frame  = tk.Scrollbar( self.canvas_input_frame, orient="horizontal", command=self.canvas_input_image.xview)    self.canvas_input_image.config(yscrollcommand=self.vsb_canvas_input_frame.set,xscrollcommand=self.hsb_canvas_input_frame.set)    self.vsb_canvas_input_frame.pack(side = "right", fill = "y")    self.hsb_canvas_input_frame.pack(side = "bottom", fill = "x")            self.canvas_input_image.config(scrollregion = self.canvas_input_image.bbox("all"))