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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