如何在烧瓶中重新加载图像

def polar_figure(df, player_):
    ....
    fig = plt.figure(figsize = (20,20), )
    ....
    # Save the plot
    plt.savefig('static/'+str(player_)+'_plot.png', transparent = True, bbox_inches = 'tight')
    return 'static/'+str(player_)+'_plot.png'

player_pic_url = '/static/'+str(player)+'_pic.jpg'

return render_template(player_pic_url = player_pic_url)

然后由index.html加载

<img src={{player_pic_url}} alt="picture" style="width:100%; border-radius: 65%; border: 20px solid transparent;">

问题是,每次我在浏览器中重新加载应用程序时,它都会显示相同的图形,即使文件如预期的那样随新数据而更改。