ascii转16进制

  2. QString str = "08_48_Jun_09_2020_测试";
  4. QString hex_str = str.toLocal8Bit().toHex(); // 将字符串转Hex
  6. //输出为30 38 5F 34 38 5F 4A 75 6E 5F 30 39 5F 32 30 32 30 5F B2 E2 CA D4

16进制转ascii

  1. QString str = "30 38 5F 34 38 5F 4A 75 6E 5F 30 39 5F 32 30 32 30 5F B2 E2 CA D4";
  3. QByteArray byte = QString2Hex(ascii2); // 将字符串转16进制
  5. QString tem = QString::fromLocal8Bit(byte); // 将16进制转ascii
  7. // 将字符串转16进制
  8. QByteArray ShowTraceData::QString2Hex(QString str)
  9. {
  10.     QByteArray senddata;
  11.     int hexdata,lowhexdata;
  12.     int hexdatalen = 0;
  13.     int len = str.length();
  14.     senddata.resize(len/2);
  15.     char lstr,hstr;
  16.     for(int i=0; i<len; )
  17.     {
  18.         hstr=str[i].toLatin1();
  19.         if(hstr == ' ')
  20.         {
  21.             i++;
  22.             continue;
  23.         }
  24.         i++;
  25.         if(i >= len)
  26.             break;
  27.         lstr = str[i].toLatin1();
  28.         hexdata = ConvertHexChar(hstr);
  29.         lowhexdata = ConvertHexChar(lstr);
  30.         if((hexdata == 16) || (lowhexdata == 16))
  31.             break;
  32.         else
  33.             hexdata = hexdata*16+lowhexdata;
  34.         i++;
  35.         senddata[hexdatalen] = (char)hexdata;
  36.         hexdatalen++;
  37.     }
  38.     senddata.resize(hexdatalen);
  39.     return senddata;
  40. }
  42. // 将字符串转16进制
  43. char ShowTraceData::ConvertHexChar(char ch)
  44. {
  45.     if((ch >= '0') && (ch <= '9'))
  46.         return ch-0x30;
  47.     else if((ch >= 'A') && (ch <= 'F'))
  48.         return ch-'A'+10;
  49.     else if((ch >= 'a') && (ch <= 'f'))
  50.         return ch-'a'+10;
  51.     else return (-1);
  52. }