C#实现利用Windows API读写INI文件的方法

using System;using System.Collections.Generic;using System.Text;using System.IO;using System.Runtime.InteropServices;namespace NameSpace{ /// <summary> /// 利用Windows API读写INI文件 /// 写入时，如果没有INI文件，自动创建INI /// 如果在创建时，GetLastError:5 检查IniPath是否添加了文件名称.ini /// </summary> public class INI {  //声明kernel32.dll函数  [DllImport("kernel32")]  private static extern long WritePrivateProfileString(string section, string key, string val, string filePath);  [DllImport("kernel32")]  private static extern int GetPrivateProfileString(string section, string key, string def, StringBuilder retVal, int size, string filePath);  //  [DllImport("kernel32")]  public static extern uint GetLastError();  string IniPath = null;  /// <summary>  /// 构造方法  /// </summary>  /// <param name="INIPath">INI文件的绝对路径，后面不需要斜杠</param>  /// <param name="INIFileName">INI文件名称使用时不需要斜杠，需要.ini</param>  public INI(string INIPath,string INIFileName)  {   Console.WriteLine("INI Object building");   IniPath = INIPath + "//" + INIFileName;   Console.WriteLine("INIFilePath :" + IniPath);  }  /// <summary>  /// 写入INI文件  /// </summary>  /// <param name="Section">Section</param>  /// <param name="Key">Key</param>  /// <param name="Value">Value</param>  public void IniWriteValue(string Section, string Key, string Value)  {   Console.WriteLine("---IniWriteValue---");   Console.WriteLine("Section :" + Section);   Console.WriteLine("Key :" + Key);   Console.WriteLine("Value :" + Value);   Console.WriteLine("IniPath :" + IniPath);   UInt32 Snapshot = GetLastError();   //   WritePrivateProfileString(Section, Key, Value, IniPath);   if (Snapshot != GetLastError())   {    Console.WriteLine("GetLastError :" + GetLastError());   }  }  /// <summary>  /// 读出INI文件  /// </summary>  /// <param name="Section">Section</param>  /// <param name="Key">Key</param>  public string IniReadValue(string Section, string Key)  {   StringBuilder result = new StringBuilder(256);   GetPrivateProfileString(Section, Key, null, result, 256, IniPath);   return result.ToString();  }  public bool ExistINIFile()  {   return File.Exists(IniPath);  }  /// <summary>  /// creat config file to application ini  /// </summary>  /// <param name="dnf_path"></param>  public void CreateConfig(string IP)  {   Console.WriteLine("CreateConfig");   Console.WriteLine("IP:" + IP);   try   {    WriteConfigIP(IP);    if (ExistINIFile())    {     Console.WriteLine("配置文件创建成功");    }    else    {     Console.WriteLine("配置文件创建不成功");    }   }   catch (Exception err)   {    Console.WriteLine("出错信息:" + err.ToString());   }  }  /// <summary>  /// write config for ip information  /// </summary>  /// <param name="IP"></param>  public void WriteConfigIP(string IP)  {   string Section = "Config";   string Key = "IP";   string Value = IP;   try   {    IniWriteValue(Section, Key, Value);   }   catch (Exception err)   {    Console.WriteLine("出错信息:" + err.ToString());   }  }  public string ReadConfigIP()  {   try   {    string Section = "Config";    string result = IniReadValue(Section, "IP");    Console.WriteLine("ReadConfigIP Result :" + result);    return result;   }   catch (Exception err)   {    Console.WriteLine("出错信息:" + err.ToString());    return "Read Error";   }  } }}