在flask wtforms jinja select上设置动态数据属性

from flask_wtf import FlaskForm
from wtforms import SelectField
from your_module import get_dynamic_options  # 导入获取动态选项的函数

class MyForm(FlaskForm):
    my_select = SelectField('My Select')

    def __init__(self, *args, **kwargs):
        super(MyForm, self).__init__(*args, **kwargs)
        self.my_select.choices = get_dynamic_options()  # 调用函数获取动态选项

from flask import render_template
from your_app import app

@app.route('/form', methods=['GET', 'POST'])
def form_view():
    form = MyForm()

    if form.validate_on_submit():
        # 处理表单提交

    return render_template('form.html', form=form)

<!-- form.html -->
<form method="POST" action="{{ url_for('form_view') }}">
  {{ form.csrf_token }}
  {{ form.my_select.label }} {{ form.my_select }}

  <button type="submit">提交</button>
</form>