C# ini文件读写

	public class INIReadWrite
	{

		[DllImport("kernel32")]
		private static extern uint GetPrivateProfileString(string strSection, string strKey, string strValue, byte[] ReturnedString, uint size, string strFilePath);

		[DllImport("kernel32")]
		private static extern int GetPrivateProfileString(string strSection, string strKey, string strValue, StringBuilder ReturnedString, int size, string strFilePath);

		[DllImport("kernel32")]
		private static extern long WritePrivateProfileString(string strSection, string strKey, string strValue, string strFilePath);

		public List<string> ReadSections(string strINIFilePath)
		{
			List<string> list = new List<string>();
			byte[] array = new byte[65536];
			uint privateProfileString = INIReadWrite.GetPrivateProfileString(null, null, null, array, (uint)array.Length, strINIFilePath);
			int num = 0;
			int num2 = 0;
			while ((long)num2 < (long)((ulong)privateProfileString))
			{
				if (array[num2] == 0)
				{
					string @string = Encoding.Default.GetString(array, num, num2 - num);
					list.Add(@string);
					num = num2 + 1;
				}
				num2++;
			}
			return list;
		}

		public List<string> ReadSectionKeys(string strSection, string strINIFilePath)
		{
			List<string> list = new List<string>();
			byte[] array = new byte[65536];
			uint privateProfileString = INIReadWrite.GetPrivateProfileString(strSection, null, null, array, (uint)array.Length, strINIFilePath);
			int num = 0;
			int num2 = 0;
			while ((long)num2 < (long)((ulong)privateProfileString))
			{
				if (array[num2] == 0)
				{
					string @string = Encoding.Default.GetString(array, num, num2 - num);
					list.Add(@string);
					num = num2 + 1;
				}
				num2++;
			}
			return list;
		}

		public string ReadSectionKeyValue(string strSection, string strKey, string strINIFilePath)
		{
			StringBuilder stringBuilder = new StringBuilder(1024);
			INIReadWrite.GetPrivateProfileString(strSection, strKey, null, stringBuilder, 1024, strINIFilePath);
			return stringBuilder.ToString();
		}

		public int WriteToINI(string strSection, string strKey, string strValue, string strINIFilePath)
		{
			int result;
			if (File.Exists(strINIFilePath))
			{
				long num = INIReadWrite.WritePrivateProfileString(strSection, strKey, strValue, strINIFilePath);
				if (num == 0L)
				{
					result = 1;
				}
				else
				{
					result = 0;
				}
			}
			else
			{
				result = 2;
			}
			return result;
		}
		public string strINIFilePath;
	}