/**
* 执行具体SQL操作
* 返回:运行结果
* 类型:数组
*/
public function query($sql, $type = '1')
{
$result = array();
self::$stmt = self::$DB->query($sql);
self::getPDOError($sql);
self::$stmt->setFetchMode(PDO::FETCH_ASSOC);
switch ($type) {
case '0':
$result = self::$stmt->fetch();
break;
case '1':
$result = self::$stmt->fetchAll();
break;
case '2':
$result = self::$stmt->rowCount();
break;
}
self::$stmt = null;
return $result;
}
