您可以在Flask URL路由处理程序中即时生成图像：
import io
import random
from flask import Response
from matplotlib.backends.backend_agg import figureCanvasAgg as figureCanvas
from matplotlib.figure import figure
@app.route('/plot.png')
def plot_png():
fig = create_figure()
output = io.BytesIO()
figureCanvas(fig).print_png(output)
return Response(output.getvalue(), mimetype='image/png')
def create_figure():
fig = figure()
axis = fig.add_subplot(1, 1, 1)
xs = range(100)
ys = [random.randint(1, 50) for x in xs]
axis.plot(xs, ys)
return fig
然后，您需要将图像包含在HTML模板中：
<img src="/plot.png" alt="my plot">
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