在jupyter notebook中使用button更新图像.

update_img_juptyter.py

from IPython import display
import time
import ipywidgets
from ipywidgets import widgets

button = widgets.Button(description = "Click")
out = widgets.Output()
display.display(widgets.VBox([out,button],layout=ipywidgets.Layout(align_items='center')))

def on_button_clicked(b):
    
    plt.plot(pylab.randn(100))
    with out:
        display.clear_output(wait=True)
        plt.show()
button.on_click(on_button_clicked)
    

将使用button控制改成sleep一段时间更新图像可以作为播放video的方式, sleep的时间取决于帧率.