一站式网上办事大厅

from flask import Flask, send_file

app = Flask(__name__)

@app.route('/download')

def download_file():

return send_file('example.pdf', as_attachment=True)

if __name__ == '__main__':

app.run(debug=True)

fetch('/download')

.then(response => response.blob())

.then(blob => {

const url = window.URL.createObjectURL(blob);

const a = document.createElement('a');

a.href = url;

a.download = 'example.pdf';

a.click();

});