在Flask WTForms中控制BootStrap窗体的样式

from flask_wtf import FlaskForm
from wtforms import StringField, SubmitField
from wtforms.validators import DataRequired

class MyForm(FlaskForm):
    name = StringField('Name', validators=[DataRequired()])
    submit = SubmitField('Submit')

<form method="POST" action="{{ url_for('submit_form') }}" class="form-horizontal">
    {{ form.hidden_tag() }}
    <div class="form-group">
        {{ form.name.label(class="control-label col-sm-2") }}
        <div class="col-sm-10">
            {{ form.name(class="form-control") }}
        </div>
    </div>
    <div class="form-group">
        <div class="col-sm-offset-2 col-sm-10">
            {{ form.submit(class="btn btn-primary") }}
        </div>
    </div>
</form>