LINQ TO XML Common Class

个人收集、整理了一些LINQ TO XML的基本方法，希望各位大虾多多指导：
 /// <summary>
///Xml节点属性
/// </summary>
public class XmlAttribute
{
 public XmlAttribute()
 {
  
 }
    public XmlAttribute(string _key,object _value)
    {
        Key = _key;
        Value = _value;
    }
    /// <summary>
    /// 节点属性名
    /// </summary>
    public string Key { get; set; }
    /// <summary>
    /// 节点值
    /// </summary>
    public object Value { get; set; }
}
 
/// <summary>
///Xml文件节点
/// </summary>
public class XmlNode
{
    public XmlNode()
    {
       
    }
    public XmlNode(XElement _xemt)
    {
        xemt = _xemt;
    }
    public XmlNode(string _nodeName, object _nodeValue)
    {
        nodeName = _nodeName;
        nodeValue = _nodeValue;       
    }
    public XmlNode(string _nodeName, object _nodeValue, List<XmlNode> _childNodes, List<XmlAttribute> _attributeList)
 {
        nodeName = _nodeName;
        nodeValue = _nodeValue;
        childNodes = _childNodes;
        attributeList = _attributeList;
 }
    /// <summary>
    /// 节点对象
    /// </summ