unity创建xml与加载xml

　　public void CreateConfigFile (Transform cellParent)
    {
        XmlDocument xmlDoc = new XmlDocument ();
        string rootName = "ChessBoard";
        XmlDeclaration xmldecl = xmlDoc.CreateXmlDeclaration ("1.0", "UTF-8", "");
        xmlDoc.AppendChild (xmldecl);
        XmlElement root = xmlDoc.CreateElement (rootName);

        UICellItem[] itemArray = cellParent.GetComponentsInChildren<UICellItem> ();
        for (int i = 0, length = itemArray.Length; i < length; i++) {
            XmlElement item = xmlDoc.CreateElement ("Item");
            item.SetAttribute ("Pos", itemArray [i].coords.ToString ());
            item.SetAttribute ("TargetPos", itemArray [i].targetPos.ToString ());
            item.SetAttribute ("Direction", _getDirection (itemArray [i].directions).ToString ());
            item.SetAttribute ("Priority", _getPriority (itemArray [i].directions));
            root.AppendChild (item);
        }
        xmlDoc.AppendChild (root);
        xmlDoc.Save (GetFilePath ());
        MainController.instance.UiDialogBoxPanel.ShowMsgOneBtn ("文件生成成功，对应路径：" + GetFilePath (), null);
    }

    public void LoadConfigFile (Transform cellParent)
    {
        XmlNodeList nodes;
        if (!hasFile (GetFilePath ())) {
            return;
        } else {
            XmlDocument xml = new XmlDocument ();
            xml.Load (@GetFilePath ());
            nodes = xml.SelectNodes ("ChessBoard/Item");
        }

        UICellItem[] itemArray = cellParent.GetComponentsInChildren<UICellItem> ();
        for (int i = 0; i < itemArray.Length; i++) {
            itemArray [i].ResetItem ();
        }
        string[] strTemp;
        for (int i = 0; i < itemArray.Length; i++) {
            strTemp = nodes [i].Attributes ["TargetPos"].Value.Split (',');
            itemArray [i].SetTargetPosInfo (strTemp);
            strTemp = nodes [i].Attributes ["Priority"].Value.Split (',');
            itemArray [i].SetItemDirections (strTemp);
        }
    }