我做了一个最小的工作示例，说明了如何做到这一点。
它需要对您的代码进行更改，但我不知道您在代码中所拥有的内容，并且您也没有创建最少的工作示例。
它使用（without ）在generate_all_figures（在您的代码中将plot_sheets使用s）中创建三个数字，并保持在列表中。plot_sheet``s
Buttons 删除带有图形的画布，并从列表中使用下一个/上一个图形创建新的画布。
我使用grid()而不是pack()因为这样可以轻松地将新画布放在同一位置。
import tkinter as tk
import matplotlib.pyplot as plt
from matplotlib.backends.backend_tkagg import figureCanvasTkAgg
class MyClass():
def __init__(self):
self.sheets = [[1,2,3], [3,1,2], [1,5,1]]
self.W = 2
self.L = 5
self.all_figures = []
def plot_sheet(self, data):
"""plot single figure"""
fig, ax = plt.subplots(1)
ax.set_xlim([0, self.W])
ax.set_ylim([0, self.L])
ax.plot(data)
return fig
def generate_all_figures(self):
"""create all figures and keep them on list"""
for data in self.sheets:
fig = self.plot_sheet(data)
self.all_figures.append(fig)
def show_figure(number):
global dataPlot
# remove old canvas
if dataPlot is not None: # at start there is no canvas to destroy
dataPlot.get_tk_widget().destroy()
# get figure from list
one_figure = my_class.all_figures[number]
# display canvas with figuere
dataPlot = figureCanvasTkAgg(one_figure, master=window)
dataPlot.draw()
dataPlot.get_tk_widget().grid(row=0, column=0)
def on_prev():
global selected_figure
# get number of prevIoUs figure
selected_figure -= 1
if selected_figure < 0:
selected_figure = len(my_class.all_figures)-1
show_figure(selected_figure)
def on_next():
global selected_figure
# get number of next figure
selected_figure += 1
if selected_figure > len(my_class.all_figures)-1:
selected_figure = 0
show_figure(selected_figure)
# --- main ---
my_class = MyClass()
my_class.generate_all_figures()
window = tk.Tk()
window.rowconfigure(0, minsize=500) # minimal height
window.columnconfigure(0, minsize=700) # minimal width
# display first figure
selected_figure = 0
dataPlot = None # default value for `show_figure`
show_figure(selected_figure)
# add buttons to change figures
frame = tk.Frame(window)
frame.grid(row=1, column=0)
b1 = tk.Button(frame, text="<<", command=on_prev)
b1.grid(row=0, column=0)
b2 = tk.Button(frame, text=">>", command=on_next)
b2.grid(row=0, column=1)
window.mainloop()
可能无需替换画布即可完成，但可以替换剧情中的数据（fig.data???，ax.data???我不记得了）
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