/**
* 删除数据
* @param [type] $table [description]
* @param [type] $condition [description]
* @param integer $limit [description]
* @return [type] [description]
*/
public static function delete($table, $condition, $limit = 0)
{
if ($limit) {
$limit = intval($limit);
}
self::$sql = "DELETE FROM " . self::table($table) . " where " . $condition . " limit " . $limit;
return self::exec();
}
