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C#進(jìn)行INI文件的讀寫(xiě)

2019-11-08 03:11:28
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using System;using System.IO;using System.Runtime.InteropServices;using System.Text;using System.Collections;using System.Collections.Specialized;  namespace wuyisky{  /**//**/  /**//// <summary>  /// IniFiles的類  /// </summary>  public class IniFiles  {    public string FileName; //INI文件名    //聲明讀寫(xiě)INI文件的API函數(shù)    [DllImport("kernel32")]    PRivate static extern bool WritePrivateProfileString(string section, string key, string val, string filePath);    [DllImport("kernel32")]    private static extern int GetPrivateProfileString(string section, string key, string def, byte[] retVal, int size, string filePath);    //類的構(gòu)造函數(shù),傳遞INI文件名    public IniFiles(string AFileName)    {      // 判斷文件是否存在      FileInfo fileInfo = new FileInfo(AFileName);      //Todo:搞清枚舉的用法      if ((!fileInfo.Exists))      { //|| (FileAttributes.Directory in fileInfo.Attributes))        //文件不存在,建立文件        System.IO.StreamWriter sw = new System.IO.StreamWriter(AFileName, false, System.Text.Encoding.Default);        try        {          sw.Write("#表格配置檔案");          sw.Close();        }          catch        {          throw (new applicationException("Ini文件不存在"));        }      }      //必須是完全路徑,不能是相對(duì)路徑      FileName = fileInfo.FullName;    }    //寫(xiě)INI文件    public void WriteString(string Section, string Ident, string Value)    {      if (!WritePrivateProfileString(Section, Ident, Value, FileName))      {         throw (new ApplicationException("寫(xiě)Ini文件出錯(cuò)"));      }    }    //讀取INI文件指定    public string ReadString(string Section, string Ident, string Default)    {      Byte[] Buffer = new Byte[65535];      int bufLen = GetPrivateProfileString(Section, Ident, Default, Buffer, Buffer.GetUpperBound(0), FileName);      //必須設(shè)定0(系統(tǒng)默認(rèn)的代碼頁(yè))的編碼方式,否則無(wú)法支持中文      string s = Encoding.GetEncoding(0).GetString(Buffer);      s = s.Substring(0, bufLen);      return s.Trim();    }      //讀整數(shù)    public int ReadInteger(string Section, string Ident, int Default)    {      string intStr = ReadString(Section, Ident, Convert.ToString(Default));      try      {        return Convert.ToInt32(intStr);        }      catch (Exception ex)      {        Console.WriteLine(ex.Message);        return Default;      }    }      //寫(xiě)整數(shù)    public void WriteInteger(string Section, string Ident, int Value)    {      WriteString(Section, Ident, Value.ToString());    }      //讀布爾    public bool ReadBool(string Section, string Ident, bool Default)    {      try      {        return Convert.ToBoolean(ReadString(Section, Ident, Convert.ToString(Default)));      }      catch (Exception ex)      {        Console.WriteLine(ex.Message);        return Default;      }    }      //寫(xiě)B(tài)ool    public void WriteBool(string Section, string Ident, bool Value)    {      WriteString(Section, Ident, Convert.ToString(Value));    }      //從Ini文件中,將指定的Section名稱中的所有Ident添加到列表中    public void ReadSection(string Section, StringCollection Idents)    {      Byte[] Buffer = new Byte[16384];      //Idents.Clear();        int bufLen = GetPrivateProfileString(Section, null, null, Buffer, Buffer.GetUpperBound(0),       FileName);      //對(duì)Section進(jìn)行解析      GetStringsFromBuffer(Buffer, bufLen, Idents);    }      private void GetStringsFromBuffer(Byte[] Buffer, int bufLen, StringCollection Strings)    {      Strings.Clear();      if (bufLen != 0)      {        int start = 0;        for (int i = 0; i < bufLen; i++)        {          if ((Buffer[i] == 0) && ((i - start) > 0))          {            String s = Encoding.GetEncoding(0).GetString(Buffer, start, i - start);            Strings.Add(s);            start = i + 1;          }        }      }    }    //從Ini文件中,讀取所有的Sections的名稱    public void ReadSections(StringCollection SectionList)    {      //Note:必須得用Bytes來(lái)實(shí)現(xiàn),StringBuilder只能取到第一個(gè)Section      byte[] Buffer = new byte[65535];      int bufLen = 0;      bufLen = GetPrivateProfileString(null, null, null, Buffer,       Buffer.GetUpperBound(0), FileName);      GetStringsFromBuffer(Buffer, bufLen, SectionList);    }    //讀取指定的Section的所有Value到列表中    public void ReadSectionValues(string Section, NameValueCollection Values)    {      StringCollection KeyList = new StringCollection();      ReadSection(Section, KeyList);      Values.Clear();      foreach (string key in KeyList)      {        Values.Add(key, ReadString(Section, key, ""));        }    }    /**/////讀取指定的Section的所有Value到列表中,    //public void ReadSectionValues(string Section, NameValueCollection Values,char splitString)    //{  string sectionValue;    //  string[] sectionValueSplit;    //  StringCollection KeyList = new StringCollection();    //  ReadSection(Section, KeyList);    //  Values.Clear();    //  foreach (string key in KeyList)    //  {    //    sectionValue=ReadString(Section, key, "");    //    sectionValueSplit=sectionValue.Split(splitString);    //    Values.Add(key, sectionValueSplit[0].ToString(),sectionValueSplit[1].ToString());     //  }    //}    //清除某個(gè)Section    public void EraseSection(string Section)    {      //      if (!WritePrivateProfileString(Section, null, null, FileName))      {          throw (new ApplicationException("無(wú)法清除Ini文件中的Section"));      }    }    //刪除某個(gè)Section下的鍵    public void DeleteKey(string Section, string Ident)    {      WritePrivateProfileString(Section, Ident, null, FileName);    }    //Note:對(duì)于Win9X,來(lái)說(shuō)需要實(shí)現(xiàn)UpdateFile方法將緩沖中的數(shù)據(jù)寫(xiě)入文件    //在Win NT, 2000和XP上,都是直接寫(xiě)文件,沒(méi)有緩沖,所以,無(wú)須實(shí)現(xiàn)UpdateFile    //執(zhí)行完對(duì)Ini文件的修改之后,應(yīng)該調(diào)用本方法更新緩沖區(qū)。    public void UpdateFile()    {      WritePrivateProfileString(null, null, null, FileName);    }      //檢查某個(gè)Section下的某個(gè)鍵值是否存在    public bool ValueExists(string Section, string Ident)    {      //      StringCollection Idents = new StringCollection();      ReadSection(Section, Idents);      return Idents.IndexOf(Ident) > -1;    }      //確保資源的釋放    ~IniFiles()    {      UpdateFile();    }  }}
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