获取Tkinter ScrollBar的偏移量，并在单击时重新计算画布元素位置

from tkinter import *
from tkinter import ttk

root = Tk()
canvas = Canvas(root)
canvas.pack()

scrollbar = ttk.Scrollbar(root, orient=VERTICAL, command=canvas.yview)
canvas.configure(yscrollcommand=scrollbar.set)
scrollbar.pack(side=RIGHT, fill=Y)

def update_canvas(event):
    canvas.yview_moveto(scrollbar.get()[0])
    # 在这里重新计算画布元素位置

scrollbar.bind("<ButtonRelease-1>", update_canvas)