/// <summary>
/// DES解密字符串
/// </summary>
/// <param name="decryptString">待解密的字符串</param>
/// <returns>解密成功返回解密后的字符串，失败返源串</returns>
public static string DecryptDESByKey8(string decryptString)
{
//return decode(decryptString);
return(StringEncryption.DecryptDESByKey8(decryptString, _key));
}
/// <summary>
/// DES加密字符串
/// </summary>
/// <param name="encryptString">待加密的字符串</param>
/// <returns>加密成功返回加密后的字符串，失败返回源串</returns>
public static string EncryptDESByKey8(string encryptString)
{
//return encode(encryptString);
return(StringEncryption.EncryptDESByKey8(encryptString, _key));
}