public function rules()
{
return [[['verifyCode'], 'required'], [['verifyCode'], 'string', 'length' => 6], [['verifyCode'], function ($attribute, $params) {
if ($this->_session['passwordResetVerifyCode'] !== $this->verifyCode) {
$this->addError($attribute, '验证码不匹配!');
}
}]];
}