如何像我们在Django中那样在Flask中选择字段？

from flask_wtf import FlaskForm
from wtforms import StringField, SelectField, SubmitField

class MyForm(FlaskForm):
    name = StringField('Name')
    age = StringField('Age')
    gender = SelectField('Gender', choices=[('M', 'Male'), ('F', 'Female')])
    submit = SubmitField('Submit')

from flask import Flask, render_template
from forms import MyForm

app = Flask(__name__)
app.config['SECRET_KEY'] = 'your-secret-key'

@app.route('/', methods=['GET', 'POST'])
def index():
    form = MyForm()
    if form.validate_on_submit():
        # 处理表单提交的数据
        name = form.name.data
        age = form.age.data
        gender = form.gender.data
        # 其他逻辑处理
    return render_template('index.html', form=form)

if __name__ == '__main__':
    app.run()