C#操作xml，含基本的增删改查询操作

最基本的xml操作实例，含常用操作方法

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.xml;

namespace xmlFileOperate
{
    public partial class Form1 : Form
    {
        public Form1（）
        {
            InitializeComponent（）;
        }
        static public string strName = ““;//记录读取时xml文件路径
        static public string strOne = ““;//定义两个变量保存文本框内的值
        static public string strTwo = ““;
        static public string strThree = ““;//保存子标记名称
        static public string strFour = ““;//保存第二个子节点的属性名
        static public string strFive = ““;//保存第二个节点的属性值
        static public string strSix = ““;//保存节点路径

        private xmlDocument xm

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2013-01-20 19:31  操作xml文件\
     目录           0  2013-01-20 19:31  操作xml文件\xmlFileOperate\
     文件         932  2009-01-06 15:20  操作xml文件\xmlFileOperate.sln
     目录           0  2013-01-20 19:31  操作xml文件\xmlFileOperate\bin\
     目录           0  2013-01-20 19:31  操作xml文件\xmlFileOperate\bin\Debug\
     文件         191  2009-02-21 11:03  操作xml文件\xmlFileOperate\bin\Debug\fileTwo.xml
     文件       20992  2010-08-18 17:51  操作xml文件\xmlFileOperate\bin\Debug\xmlFileOperate.exe
     文件       32256  2010-08-18 17:51  操作xml文件\xmlFileOperate\bin\Debug\xmlFileOperate.pdb
     文件       14328  2009-01-12 15:50  操作xml文件\xmlFileOperate\bin\Debug\xmlFileOperate.vshost.exe
     文件         490  2007-07-21 01:33  操作xml文件\xmlFileOperate\bin\Debug\xmlFileOperate.vshost.exe.manifest
     文件       11046  2009-01-10 15:40  操作xml文件\xmlFileOperate\Form1.cs
     文件       25501  2010-08-18 17:51  操作xml文件\xmlFileOperate\Form1.Designer.cs
     文件        5814  2009-01-10 15:39  操作xml文件\xmlFileOperate\Form1.resx
     目录           0  2013-01-20 19:31  操作xml文件\xmlFileOperate\obj\
     目录           0  2013-01-20 19:31  操作xml文件\xmlFileOperate\obj\Debug\
     目录           0  2012-05-02 09:55  操作xml文件\xmlFileOperate\obj\Debug\Refactor\
     目录           0  2012-05-02 09:55  操作xml文件\xmlFileOperate\obj\Debug\TempPE\
     文件         685  2009-01-12 15:50  操作xml文件\xmlFileOperate\obj\Debug\xmlFileOperate.csproj.FileListAbsolute.txt
     文件         847  2009-01-10 15:39  操作xml文件\xmlFileOperate\obj\Debug\xmlFileOperate.csproj.GenerateResource.Cache
     文件       20992  2009-01-10 15:39  操作xml文件\xmlFileOperate\obj\Debug\xmlFileOperate.exe
     文件         180  2009-01-10 15:39  操作xml文件\xmlFileOperate\obj\Debug\xmlFileOperate.Form1.resources
     文件       32256  2010-08-18 17:51  操作xml文件\xmlFileOperate\obj\Debug\xmlFileOperate.pdb
     文件         180  2009-01-06 15:32  操作xml文件\xmlFileOperate\obj\Debug\xmlFileOperate.Properties.Resources.resources
     文件         495  2009-01-06 15:19  操作xml文件\xmlFileOperate\Program.cs
     目录           0  2013-01-20 19:31  操作xml文件\xmlFileOperate\Properties\
     文件        1360  2009-01-06 15:19  操作xml文件\xmlFileOperate\Properties\AssemblyInfo.cs
     文件        2878  2009-01-06 15:19  操作xml文件\xmlFileOperate\Properties\Resources.Designer.cs
     文件        5612  2009-01-06 15:19  操作xml文件\xmlFileOperate\Properties\Resources.resx
     文件        1099  2009-01-06 15:19  操作xml文件\xmlFileOperate\Properties\Settings.Designer.cs
     文件         249  2009-01-06 15:19  操作xml文件\xmlFileOperate\Properties\Settings.settings
     文件        3774  2009-01-06 15:32  操作xml文件\xmlFileOperate\xmlFileOperate.csproj
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