C# 操作INI文件类

先Show示例：

 

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  private void TestINI_Load(object sender, System.EventArgs e)
  {
   //创建一个INIFile对象，参数为文件路径，如果不存在它会自动创建的
   INIFile inf=new INIFile(@"D:/工作目录/VSPP/VSPPServer/bin/Debug/COMPILED.INI");
   //显示INI配置的结构
   foreach(string k in inf.Segments.Keys)
   {
    TreeNode o=new TreeNode(k);
    INISegment s=inf.Segments[k]; //取出当前配置节
    foreach(string k1 in s.Items.Keys)
    {
     TreeNode o1=new TreeNode(k1+" = "+s.Items[k1].Value); //访问配置节中每个配置项
     o.Nodes.Add(o1);
    }
    treeView1.Nodes.Add(o);
   }
   //添加一个配置
   inf.Segments.Add("Test"); //添加Test节
   inf.Segments["Test"].Items.Add("IP","192.168.0.1"); //添加一个配置项
   //快速添加一个配置项
   inf.Segments["测试"].Items["Host"].Value="localhost"; // ：）和上面两行一样的效果
   //读取也是同样的方便
   MessageBox.Show(inf.Segments["测试"].Items["Host"].Value);
   //如果不存在这样的配置项，将返回空字符串并创建这个项
   MessageBox.Show(inf.Segments["测试"].Items["Server"].Value);
   //清除一个配置节下面的所有配置项
   //inf.Segments["Action"].Clear();
  }

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再Show代码：
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using System;
using System.IO;
using System.Data;
using System.Text;
using System.Collections;
using System.Text.RegularExpressions;
using System.Runtime.InteropServices;
namespace eGlic
{
 #region INI文件操作类
 /// <summary>
 /// 配置节
 /// </summary>
 public class INISegment
 {
  private string __Name;
  private INISegments __Owner;
  /// <summary>
  /// 所有配置项集合
  /// </summary>
  public INIItems Items;
  /// <summary>
  /// 构造函数
  /// </summary>
  /// <param name="o">Owner</param>
  /// <param name="vName">配置节名称</param>
  public INISegment(INISegments o,string vName)
  {
   __Owner=o;
   __Name=vName;
   Items=new INIItems(this);
   o.Owner.GetSegment(this);
  }
  /// <summary>
  /// 获取配置节的名称
  /// </summary>
  public string Name
  {
   get {return __Name;}
  }
  /// <summary>
  /// 获取Segment的Owner：INISegments集合
  /// </summary>
  public INISegments Owner
  {
   get {return __Owner;}
  }
  /// <summary>
  /// 清除所有设置项
  /// </summary>
  public void Clear()
  {
   __Owner.Owner.WriteSegment(__Name,"/0/0");
  }
 }
 /// <summary>
 /// 配置节集合
 /// </summary>
 public class INISegments : DictionaryBase
 {
  private INIFile __Owner;
  /// <summary>
  /// 构造函数
  /// </summary>
  /// <param name="o">Owner</param>
  public INISegments(INIFile o)
  {
   __Owner=o;
  }
  /// <summary>
  /// 获取此对象的Owner：INIFile类
  /// </summary>
  public INIFile Owner
  {
   get {return __Owner;}
  }
  /// <summary>
  /// 添加一个已经存在的配置节
  /// </summary>
  /// <param name="o">配置节对象</param>
  public void Add(INISegment o)
  {
   if(!Dictionary.Contains(o.Name))
    Dictionary.Add(o.Name,o);
  }
  /// <summary>
  /// 添加一个可能不存在的配置节（创建一个配置节）
  /// </summary>
  /// <param name="vName">配置节名称</param>
  /// <returns>添加的配置节</returns>
  public INISegment Add(string vName)
  {
   if(Dictionary.Contains(vName))
    return (INISegment)Dictionary[vName];
   INISegment o=new INISegment(this,vName);
   Dictionary.Add(vName,o);
   return o;
  }
  /// <summary>
  /// 获取索引集合
  /// </summary>
  public ICollection Keys
  {
   get {return Dictionary.Keys;}
  }
  /// <summary>
  /// 获取值集合
  /// </summary>
  public ICollection Values
  {
   get {return Dictionary.Values;}
  }
  /// <summary>
  /// 获取配置节
  /// </summary>
  public INISegment this [string vName]
  {
   get{
    if(!Dictionary.Contains(vName))
     return this.Add(vName);
    else
     return (INISegment)Dictionary[vName];
   }
  }
  /// <summary>
  /// 获取是否包含某配置节
  /// </summary>
  /// <param name="vName">配置节名称</param>
  /// <returns>是否</returns>
  public bool Contains(string vName)
  {
   return Dictionary.Contains(vName);
  }
 }
 /// <summary>
 /// 配置项
 /// </summary>
 public class INIItem
 {
  private string __Name;
  private string __Value;
  private INIItems __Owner;
  /// <summary>
  /// 构造函数
  /// </summary>
  /// <param name="o">Owner</param>
  /// <param name="vName">名称</param>
  /// <param name="vValue">值</param>
  public INIItem(INIItems o,string vName,string vValue)
  {
   __Owner=o;
   __Name=vName;
   __Value=vValue;
   if(!o.Contains(vName))
    o.Owner.Owner.Owner.SetString(o.Owner.Name,vName,vValue);
  }
  /// <summary>
  /// 获取名称
  /// </summary>
  public string Name
  {
   get {return __Name;}
  }
  /// <summary>
  /// 获取设置值
  /// </summary>
  public string Value
  {
   get {return __Value;}
   set {
    __Value=value;
    __Owner.Owner.Owner.Owner.SetString(__Owner.Owner.Name,__Name,value);
   }
  }
  /// <summary>
  /// 获取Owner
  /// </summary>
  public INIItems Owner
  {
   get {return __Owner;}
  }
 }
 /// <summary>
 /// 配置项集合
 /// </summary>
 public class INIItems : DictionaryBase
 {
  private INISegment __Owner;
  /// <summary>
  /// 构造函数
  /// </summary>
  /// <param name="o">Owner</param>
  public INIItems(INISegment o)
  {
   __Owner=o;
  }
  /// <summary>
  /// 获取Owner
  /// </summary>
  public INISegment Owner
  {
   get {return __Owner;}
  }
  /// <summary>
  /// 添加一个已经存在的配置项
  /// </summary>
  /// <param name="o">配置项</param>
  public void Add(INIItem o)
  {
   if(!Dictionary.Contains(o.Name))
    Dictionary.Add(o.Name,o);
  }
  /// <summary>
  /// 获取是否包含指定名称的配置项
  /// </summary>
  /// <param name="vName">配置项名称</param>
  /// <returns>是否</returns>
  public bool Contains(string vName)
  {
   return Dictionary.Contains(vName);
  }
  /// <summary>
  /// 获取所有的索引集合
  /// </summary>
  public ICollection Keys
  {
   get {return Dictionary.Keys;}
  }
  /// <summary>
  /// 获取所有的值集合
  /// </summary>
  public ICollection Values
  {
   get {return Dictionary.Values;}
  }
  /// <summary>
  /// 添加一个可能不存在的配置项（创建一个配置项）
  /// </summary>
  /// <param name="vName">配置项名</param>
  /// <param name="vValue">配置项值</param>
  /// <returns>创建的配置项INIItem对象</returns>
  public INIItem Add(string vName,string vValue)
  {
   if(Dictionary.Contains(vName))
    return (INIItem)Dictionary[vName];
   else
   {
    INIItem o=new INIItem(this,vName,vValue);
    this.Add(o);
    return o;
   }
  }
  /// <summary>
  /// 获取指定索引的配置项
  /// </summary>
  public INIItem this[string vName]
  {
   get {
    if(Dictionary.Contains(vName))
     return (INIItem)Dictionary[vName];
    else
     return this.Add(vName,"");
   }
  }
 }
 /// <summary>
 /// INI文件操作类
 /// </summary>
 public class INIFile
 {
  #region 导入DLL函数
  [DllImport("kernel32.dll")] public extern static int GetPrivateProfileIntA(string segName,string keyName,int iDefault,string fileName);
  [DllImport("kernel32.dll")] public extern static int GetPrivateProfileStringA(string segName,string keyName,string sDefault,StringBuilder retValue,int nSize,string fileName);
  [DllImport("kernel32.dll")] public extern static int GetPrivateProfileSectionA(string segName,byte [] sData,int nSize,string fileName);
  [DllImport("kernel32.dll")] public extern static int WritePrivateProfileSectionA(string segName,byte [] sData,string fileName);
  [DllImport("kernel32.dll")] public extern static int WritePrivateProfileStringA(string segName,string keyName,string sValue,string fileName);
  [DllImport("kernel32.dll")] public extern static int GetPrivateProfileSectionNamesA(byte [] vData,int iLen,string fileName);
  #endregion

  private string __Path;
  /// <summary>
  /// 所有的配置节
  /// </summary>
  public INISegments Segments;
  /// <summary>
  /// 构造函数
  /// </summary>
  /// <param name="vPath">INI文件路径</param>
  public INIFile(string vPath)
  {
   __Path=vPath;
   Segments=new INISegments(this);
   byte [] bufsegs=new byte [32767];
   int rel=GetPrivateProfileSectionNamesA(bufsegs,32767,__Path);
   int iCnt,iPos;
   string tmp;
   if(rel>0)
   {
    iCnt=0;iPos=0;
    for(iCnt=0;iCnt<rel;iCnt++)
    {
     if(bufsegs[iCnt]==0x00)
     {
      tmp=System.Text.ASCIIEncoding.Default.GetString(bufsegs,iPos,iCnt).Trim();
      iPos=iCnt+1;
      if(tmp!="")
       Segments.Add(tmp);
     }
    }
   }
  }
  /// <summary>
  /// 获取INI文件路径
  /// </summary>
  public string Path
  {
   get {return __Path;}
  }
  /// <summary>
  /// 读取一个整数型的配置值
  /// </summary>
  /// <param name="segName">配置节名</param>
  /// <param name="keyName">配置项名</param>
  /// <param name="iDefault">默认值</param>
  /// <returns>配置值</returns>
  public int GetInt(string segName,string keyName,int iDefault)
  {
   return GetPrivateProfileIntA(segName,keyName,iDefault,__Path);
  }
 
  /// <summary>
  /// 读取一个字符串型配置值
  /// </summary>
  /// <param name="segName">配置节名</param>
  /// <param name="keyName">配置项名</param>
  /// <param name="sDefault">默认值</param>
  /// <returns>配置值</returns>
  public string GetString(string segName,string keyName,string sDefault)
  {
   StringBuilder red=new StringBuilder(1024);
   GetPrivateProfileStringA(segName,keyName,"",red,1024,__Path);
   return red.ToString();
  }
 
  /// <summary>
  /// 写入配置项
  /// </summary>
  /// <param name="segName">配置节名</param>
  /// <param name="keyName">配置项名</param>
  /// <param name="vValue">配置值</param>
  public void SetString(string segName,string keyName,string vValue)
  {
   WritePrivateProfileStringA(segName,keyName,vValue,__Path);
  }
  /// <summary>
  /// 写入一个配置节
  /// </summary>
  /// <param name="segName">配置节名</param>
  /// <param name="vData">数据</param>
  /// <remarks>
  /// 数据为多个配置项组成的字符串，每个配置项之间用 "/0" 分割
  /// 字符串最后用 "/0/0" 结束
  /// </remarks>
  /// <example>
  /// WriteSegment(segName,"/0/0"); 可以用于清除一个配置节下的所有配置项
  /// </example>
  public void WriteSegment(string segName,string vData)
  {
   WritePrivateProfileSectionA(segName,System.Text.ASCIIEncoding.Default.GetBytes(vData),__Path);
  }
  /// <summary>
  /// 读取一个配置节下面的所有配置项
  /// </summary>
  /// <param name="o">要读取的配置节</param>
  public void GetSegment(INISegment o)
  {
   byte [] vData=new byte [32767];
   int rLen=GetPrivateProfileSectionA(o.Name,vData,32767,__Path);
   o.Items.Clear();
   if(rLen<1) return;
   string tmp="";
   int iPos,iCnt;
   iPos=0;
   for(iCnt=0;iCnt<rLen;iCnt++)
   {
    if(vData[iCnt]==0x00)
    {
     tmp=System.Text.ASCIIEncoding.Default.GetString(vData,iPos,iCnt-iPos).Trim();
     if(tmp!="")
     {
      string [] t=tmp.Split('=');
      if(t.Length<=1)
       o.Items.Add(t[0],"");
      else
       o.Items.Add(t[0],t[1]);
     }
     iPos=iCnt+1;
    }
   }
  }
 }
 #endregion
}