Web Template

<!-- /templates/test.html -->
 
<!DOCTYPE html>
<html>
<head>
  <title>test</title>
</head>
<body>
  {% if name %}
  <h1>Hello {{ name }}!</h1>
  {% else %}
  <h1>Hello, World!</h1>
  {% endif %}
</body>
</html>

@app.route('/')
def home():
    name = request.args.get('name')
    return render_template('test.html', name=name)

image 16.png