Yii 中 AR 删除数据的方法

$post=Post::model()->findByPk(10); // assuming there is a post whose ID is 10
$post->delete(); // delete the row from the database table

// delete the rows matching the specified condition
Post::model()->deleteAll($condition,$params);
// delete the rows matching the specified condition and primary key(s)
Post::model()->deleteByPk($pk,$condition,$params);