C#2005 无外部Dll调用书写 Ini配置文件原代码.

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using System;
using System.IO;
using System.Windows.Forms;
using System.Text;
using System.Text.RegularExpressions;


public class InstallIni {
	///<summary>设置Ini文件路径</summary>
	public String Files {
		get { return AttrFiles; }
		set {
			AttrFiles = value;
			if ( File.Exists(AttrFiles) ) {
				Open();
			} else {
				FilesText = "";
			}
		}
	}
	public String AttrFiles = "";
	///<summary>Ini文件所有内容</summary>
	public String FilesText {
		get { return AttrFilesText; }
		set { AttrFilesText = value; }
	}
	public String AttrFilesText = "";




	///<summary>创建与Exe文件名相同的Ini文件</summary>
	public InstallIni() {
		String HaFile = Application.ExecutablePath;
		HaFile = new Regex(@"\\[^\\]*$").Match(HaFile).Value;
		HaFile = new Regex(@"(^\\)|(\.(.*?)$)").Replace(HaFile, "");
		HaFile = HaFile + ".Ini";
		Files = HaFile;
	}
	///<summary>创建指定路径文件名Ini文件</summary>
	public InstallIni(String DataFile) {
		Files = DataFile;
	}

	///<summary>设置内容文件值</summary>
	public void Set(String DataSet, String DataName, String DataValue) {
		String HaValue = DataName + "=" + DataValue.Replace("\n", @"\n");
		Match HaMatchSet = new Regex(@"(^|\n)\[" + DataSet + @"\]\n(.|\n)*?($|(?=\n\[))").Match(FilesText);
		if ( HaMatchSet.Success ) {
			Match HaMatchName = new Regex(@"(^|\n)" + DataName + @"=.*?($|\n)").Match(HaMatchSet.Value);
			if ( HaMatchName.Success ) {
				if ( HaValue != "" ) {
					HaValue = ( new Regex(@"^\n").Match(HaMatchName.Value).Success ) ? "\n" + HaValue : HaValue;
					HaValue = ( new Regex(@"\n$").Match(HaMatchName.Value).Success ) ? HaValue + "\n" : HaValue;
					FilesText = FilesText.Substring(0, HaMatchSet.Index + HaMatchName.Index) + HaValue + FilesText.Substring(HaMatchSet.Index + HaMatchName.Index + HaMatchName.Length);
				} else {
					FilesText = FilesText.Substring(0, HaMatchSet.Index + HaMatchName.Index) + FilesText.Substring(HaMatchSet.Index + HaMatchName.Index + HaMatchName.Length);
				}
				return;
			}
			if ( DataValue != "" ) {
				HaValue = ( new Regex(@"\n$").Match(HaMatchSet.Value).Success ) ? HaValue : "\n" + HaValue;
				FilesText = FilesText.Substring(0, HaMatchSet.Index + HaMatchSet.Length) + HaValue + FilesText.Substring(HaMatchSet.Index + HaMatchSet.Length);
			} else {
				FilesText = FilesText.Substring(0, HaMatchSet.Index + HaMatchSet.Length) + FilesText.Substring(HaMatchSet.Index + HaMatchSet.Length);
			}
			return;
		}
		if ( DataValue != "" ) {
			String HaSet = "[" + DataSet + "]\n";
			if ( FilesText != "" ) {
				HaSet = ( new Regex(@"\n$").Match(FilesText).Success ) ? HaSet : "\n" + HaSet;
			}
			FilesText += HaSet + HaValue;
			Console.WriteLine(FilesText + "\n" + System.DateTime.Now + ":" + System.DateTime.Now.Millisecond);
			return;
		}
	}

	///<summary>获取内容文件值</summary>
	public String Get(String DataSet, String DataName) {
		String Result = "";
		try {
			Result = FilesText;
			Result = new Regex(@"(^|\n)\[" + DataSet + @"\]\n(.|\n)*?($|(?=\n\[))").Match(Result).Value;
			Result = new Regex(@"(^|\n)" + DataName + @"=.*?($|\n)").Match(Result).Value;
			Result = new Regex("^\n*" + DataName + "=|\n*$").Replace(Result, "");
			Result = new Regex(@"\n").Replace(Result, "\n");
		} catch {
			Result = "";
		}
		return Result;
	}

	///<summary>重新打开配置文件</summary>
	public void Open() {
		for ( Int32 i = 0; i < 10; i++ ) {
			try {
				if ( File.Exists(AttrFiles) ) {
					using ( FileStream FileStreams = new FileStream(AttrFiles, FileMode.Open) ) {
						Byte[] HaByte = new Byte[(Int32)FileStreams.Length];
						FileStreams.Read(HaByte, 0, (Int32)FileStreams.Length);
						FilesText = Encoding.Default.GetString(HaByte, 0, HaByte.Length);
						FilesText = new Regex(@"(\r|\n){2}|(\r|\n){1}").Replace(FilesText, "\n");
					}
					return;
				}else{
					FilesText = "";
				}
			} catch {
				System.Threading.Thread.Sleep(200);
			}
		}
		MessageBox.Show("读取配置文件失败." + AttrFiles);
	}

	///<summary>写入配置文件</summary>
	public void Write() {
		for ( Int32 i = 0; i < 10; i++ ) {
			try {
				using ( FileStream FileStreams = new FileStream(AttrFiles, FileMode.Create) ) {
					Byte[] HaByte = Encoding.Default.GetBytes(FilesText.Replace("\n", "\r\n"));
					FileStreams.Write(HaByte, 0, HaByte.Length);
				}
				return;
			} catch {
				System.Threading.Thread.Sleep(200);
			}
		}
		MessageBox.Show("写入配置文件失败.");
	}

	///<summary>删除某个组</summary>
	public void DelSet(String DataSet) {
		Match HaMatchSet = new Regex(@"(^|\n)\[" + DataSet + @"\]\n(.|\n)*?($|(?=\n\[))").Match(FilesText);

		String HaText = ( new Regex(@"\n$").Match(HaMatchSet.Value).Success ) ? "\n" : "";

		FilesText = FilesText.Substring(0, HaMatchSet.Index) + HaText + FilesText.Substring(HaMatchSet.Index + HaMatchSet.Length);
	}
}