/// <summary>
??/// 數(shù)據(jù)流轉(zhuǎn)換為十六進(jìn)制字符串
??/// </summary>
??/// <param name="bytes"></param>
??/// <returns></returns>
? private static?string ByteArrayToHexString(byte[] bytes)

??{

???if ( bytes == null || bytes.Length == 0 )

????throw new ArgumentException( "bytes []?參數(shù)出錯(cuò)" );

???StringBuilder hexString = new StringBuilder( 2 * bytes.Length );

???for ( int i = 0; i < bytes.Length; i++ )
????hexString.AppendFormat( "{0:X2}", bytes[i] );

???return hexString.ToString();

??}

??/// <summary>
??/// 十六進(jìn)制字符串轉(zhuǎn)換為數(shù)據(jù)流
??/// </summary>
??/// <param name="strHexString"></param>
??/// <returns></returns>
??private static byte[] HexStringToByteArray(string strHexString)
??{
???
???int len = strHexString.Length ;

???if ( (len % 2) !=0)
????throw new Exception("HexString 字符出錯(cuò)!!");

???int byteLen = len /2 ;

???byte[] bytes = new byte [byteLen];

???for (int i=0;i<byteLen ;i++ )
???{
????bytes[i] = Convert.ToByte( strHexString.Substring( i*2,2),16);
???}

???return bytes;
??}
??

可以在加密數(shù)據(jù)時(shí)使用。

?

轉(zhuǎn)載于:https://www.cnblogs.com/davidlili/archive/2005/10/23/260383.html

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