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記錄log中的16進(jìn)制和ASCII碼字符輸出

文章來源：365jz.com 點(diǎn)擊數(shù)：727 更新時(shí)間：2009-09-19 10:43 參與評論

寫通信程序常常需要把發(fā)出和收到的包記錄到log文件，而最常用的記錄方式就是16進(jìn)制和ASCII碼左右對照的方式，

C代碼：

   1: short DebugASCII( char *buf1, int leng, int line)   2: {   3:    int i, j=0;   4:    char s[100], temp[5];   5:     6:    printf( "Debug Information from Line: %04d\n", line);   7:     8:    for( i=0; i<leng; i++)   9:    {  10:       if ( j==0)  11:       {  12:          memset( s, ' ', 84);  13:          sprintf(temp,   " %03d:",i );  14:          memcpy( s, temp, 5);  15:          sprintf(temp,   ":%03d",i+15 );  16:          memcpy( &s[72], temp, 4);  17:       }  18:       sprintf( temp, "%02X ", (unsigned char)buf1[i]);  19:       memcpy( &s[j*3+5+(j>7)], temp, 3);  20:       if ( isprint( buf1[i]))  21:       {  22:          s[j+55+(j>7)]=buf1[i];  23:       }  24:       else  25:       {  26:          s[j+55+(j>7)]='.';  27:       }  28:       j++;  29:       if ( j==16)  30:       {  31:          s[76]=0;  32:          printf( "%s\n", s);  33:          j=0;  34:       }  35:    }  36:    if ( j)  37:    {  38:       s[76]=0;  39:       printf( "%s\n", s);  40:    }  41: } 

C#代碼:

   1: string ToPrintLog = LogHex ( 16, 8, message );   2:     3: public static string LogHex ( int lineWidth, int spaceIndent, byte[] data )   4: {   5:         if ( data == null ) return null;   6:     7:         string temp;   8:         string line = String.Empty;   9:    10:         StringBuilder sb = new StringBuilder ();  11:         int j = 0;  12:    13:         for ( int i = 0; i < data.Length; i++ )  14:         {  15:             temp = data[i].ToString ( "X2" ).PadLeft ( 2, '0' ); //0xce -> "CE"  16:    17:             if ( j == 0 )  18:                 line = temp;  19:             else  20:             {  21:                 if ( (j+1) % spaceIndent == 0 )  22:                     line = line.Insert ( ( j >= spaceIndent ) ? 2 * j + 1 : ( 2 * j ), temp+" " );  23:                 else  24:                     line = line.Insert ( ( j >= spaceIndent ) ? 2 * j + 1 : ( 2 * j ), temp );  25:             }  26:    27:             if ( data[i] >= 0x30 && data[i] <= 0x7E )  28:             {  29:                 temp=( (char)data[i] ).ToString ();  30:             }  31:             else  32:             {  33:                 temp= "." ;//invisible  34:             }  35:    36:             line = line.Insert ( line.Length, temp );  37:    38:             j++;  39:    40:             if ( j == lineWidth )  41:             {  42:                 sb.AppendLine ( line );  43:    44:                 j = 0;  45:    46:                 line = String.Empty;  47:             }  48:             else  49:             {  50:                 if ( i == data.Length - 1 )  51:                 {  52:                     int comCount = 1;  53:    54:                     if ( j >= spaceIndent )  55:                         comCount = 2 * lineWidth - 2 * j+1;  56:                     else  57:                         comCount = 2 * lineWidth - 2 * j +2;  58:    59:                     for ( int m = 0; m < comCount; m++ )  60:                     {  61:                         line = line.Insert ( ( j >= spaceIndent ) ? 2 * j +1 : ( 2 * j ), " " );  62:                     }  63:                     sb.AppendLine ( line );  64:                 }  65:             }  66:         }  67:         return sb.ToString();  68: }

輸出結(jié)果樣例：

   1: 14A654A 20476459 14A654A 20476459   .JeJ .GdY .JeJ .GdY    2: 6646A49 20202020 6646A49 20202020   edjI .... edjI ....    3: 21F4A65 4A204764 21F4A65 4A204764   ..Je J.Gd ..Je J.Gd    4: 565646A 49203130 565646A 49203130   Yedj I.10 Yedj I.10    5: 2202020 20202020 2202020 20202020   .... .... .... .... 