public static function getChildOptionStr($pid, $level)
{
$optionStr = CHtml::tag('option', array('value' => ''), '请选择');
$cates = self::getCates($pid, $level);
if (!empty($cates)) {
foreach ($cates as $id => $name) {
$optionStr .= CHtml::tag('option', array('value' => $id), $name);
}
}
return $optionStr;
}