记录log中的16进制和ASCII码字符输出-技术开发专区

记录log中的16进制和ASCII码字符输出

作者：ITPUB论坛编辑： nancy 2008-04-13 14:23

【IT168技术文档】

写通信程序常常需要把发出和收到的包记录到log文件，而最常用的记录方式就是16进制和ASCII码左右对照的方式，

C代码：


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#代码:

   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: }

输出结果样例：

   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   .... .... .... ....

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