/// <summary>
/// 解码编码为字符串的数据，算法: ((firstByte - 65) 左移 4) + lastByte - 65 => sourceByte
/// </summary>
/// <param name="strData">字符串数据</param>
/// <param name="filePath">要保存的文件名</param>
/// <returns></returns>
public static void DecodingFile(string strData, string filePath)
{
byte[] buffer = FileStringCodingEx.DecodingString(strData);
using (FileStream fs = new FileStream(filePath, FileMode.Create, FileAccess.ReadWrite))
{
fs.Write(buffer, 0, buffer.Length);
}
}
/// <summary>
/// 编码二进制数据为字符串
/// </summary>
/// <param name="filePath">数据文件</param>
/// <returns>编码后的字符串</returns>
public static string EncodingFile(string filePath)
{
//(A ~ Z)，算法:sourceByte => firstByte = (byte 右移 4) + 65 和 lastByte = (byte&(byte)15) + 65
using (FileStream fs = new FileStream(filePath, FileMode.Open, FileAccess.Read))
{
byte[] buffer = new byte[fs.Length];
fs.Read(buffer, 0, buffer.Length);
return(FileStringCodingEx.EncodingBytes(buffer));
}
}
