正确更新matplotlib绘图- tkinter

import matplotlib.pyplot as plt
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg
from matplotlib.figure import Figure
import tkinter as tk

root = tk.Tk()
fig = Figure(figsize=(5, 4), dpi=100)

ax = fig.add_subplot(111)
ax.plot([1, 2, 3, 4, 5], [10, 5, 20, 15, 25], 'r-')
ax.set_xlabel('X-axis')
ax.set_ylabel('Y-axis')
ax.set_title('Matplotlib Plot')

canvas = FigureCanvasTkAgg(fig, master=root)
canvas.draw()
canvas.get_tk_widget().pack(side=tk.TOP, fill=tk.BOTH, expand=1)

def update_plot():
    ax.clear()  # 清空绘图
    ax.plot([1, 2, 3, 4, 5], [5, 10, 15, 20, 25], 'b-')  # 更新绘图数据
    ax.set_title('Updated Matplotlib Plot')  # 更新标题
    canvas.draw()  # 重新绘制

update_button = tk.Button(root, text='Update Plot', command=update_plot)
update_button.pack(side=tk.BOTTOM)