在Tkinter的Canvas中滚动区域？

import tkinter as tk

def main():
    root = tk.Tk()
    canvas = tk.Canvas(root, width=400, height=400, bg='white')
    canvas.pack(side=tk.LEFT, fill=tk.BOTH, expand=True)

    scrollbar = tk.Scrollbar(root, orient=tk.VERTICAL, command=canvas.yview)
    scrollbar.pack(side=tk.RIGHT, fill=tk.Y)

    canvas.configure(yscrollcommand=scrollbar.set)

    # 创建一个带有滚动条的滚动区域
    frame = tk.Frame(canvas)
    canvas_window = canvas.create_window(0, 0, window=frame, anchor='nw')

    # 添加控件到滚动区域
    for i in range(10):
        tk.Label(frame, text=f'Label {i}').pack(fill=tk.X)

    # 调整滚动区域大小
    def on_frame_configure(event):
        canvas.configure(scrollregion=canvas.bbox('all'))

    frame.bind('<Configure>', on_frame_configure)

    root.mainloop()

if __name__ == '__main__':
    main()