Yii2中自定义表单样式

use yii\widgets\ActiveForm;

<?php $form = ActiveForm::begin([
'options' => ['class' => 'form-horizontal'],
'fieldConfig' => [
'options'=>['class'=>'control-group'],
'template' => "{label}<div class=\"controls\">{input}<span class=\"help-inline\">{error}</span></div>",
'inputOptions'=>['class'=>'input-xlarge'],
'labelOptions' => ['class' => 'control-label'],
],
]); ?>

<?= $form->field($model, 'username')->textInput(['maxlength' => 255]) ?>

<?= $form->field($model, 'password')->passwordInput() ?>

...  ...

<?php ActiveForm::end(); ?>

这是YII2 form表单的用法，关键词有几个：

options fieldConfig template inputOptions labelOptions {label} {input} {error}
http://blog.sina.com.cn/s/blog_86fe5b4401018xct.html