写入XML

    public void ReadSave(string Path)
    {

        XmlDocument doc = new XmlDocument();
        //读取XML
        doc.Load(Path);
        //最大的分隔符是Shop
        XmlNode root = doc.SelectSingleNode("SaveData");
        //得到最大的分隔符的子分隔符
        XmlNodeList nodelist = root.ChildNodes;
        Gold = int.Parse(nodelist[0].InnerText);
        Score = int.Parse(nodelist[1].InnerText);
        //读取购买状态
        for (int i = 2; i < 6; i++)
        {
          int ww = int.Parse(nodelist[i].InnerText);
          IsBuy.Add(ww);
        }
}