函數名
<code> //字節數組轉Ascii字符串 static QString byteArrayToAsciiStr(const QByteArray &data); //16進制字符串轉字節數組 static QByteArray hexStrToByteArray(const QString &str); static char convertHexChar(char ch); //Ascii字符串轉字節數組 static QByteArray asciiStrToByteArray(const QString &str); //字節數組轉16進制字符串 static QString byteArrayToHexStr(const QByteArray &data);/<code>
函數體
<code>QString QUIHelper::byteArrayToAsciiStr(const QByteArray &data) { QString temp; int len = data.size(); for (int i = 0; i < len; i++) { //0x20為空格,空格以下都是不可見字符 char b = data.at(i); if (0x00 == b) { temp += QString("\\NUL"); } else if (0x01 == b) { temp += QString("\\SOH"); } else if (0x02 == b) { temp += QString("\\STX"); } else if (0x03 == b) { temp += QString("\\ETX"); } else if (0x04 == b) { temp += QString("\\EOT"); } else if (0x05 == b) { temp += QString("\\ENQ"); } else if (0x06 == b) { temp += QString("\\ACK"); } else if (0x07 == b) { temp += QString("\\BEL"); } else if (0x08 == b) { temp += QString("\\BS"); } else if (0x09 == b) { temp += QString("\\HT"); } else if (0x0A == b) { temp += QString("\\LF"); } else if (0x0B == b) { temp += QString("\\VT"); } else if (0x0C == b) { temp += QString("\\FF"); } else if (0x0D == b) { temp += QString("\\CR"); } else if (0x0E == b) { temp += QString("\\SO"); } else if (0x0F == b) { temp += QString("\\SI"); } else if (0x10 == b) { temp += QString("\\DLE"); } else if (0x11 == b) { temp += QString("\\DC1"); } else if (0x12 == b) { temp += QString("\\DC2"); } else if (0x13 == b) { temp += QString("\\DC3"); } else if (0x14 == b) { temp += QString("\\DC4"); } else if (0x15 == b) { temp += QString("\\NAK"); } else if (0x16 == b) { temp += QString("\\SYN"); } else if (0x17 == b) { temp += QString("\\ETB"); } else if (0x18 == b) { temp += QString("\\CAN"); } else if (0x19 == b) { temp += QString("\\EM"); } else if (0x1A == b) { temp += QString("\\SUB"); } else if (0x1B == b) { temp += QString("\\ESC"); } else if (0x1C == b) { temp += QString("\\FS"); } else if (0x1D == b) { temp += QString("\\GS"); } else if (0x1E == b) { temp += QString("\\RS"); } else if (0x1F == b) { temp += QString("\\US"); } else if (0x7F == b) { temp += QString("\\x7F"); } else if (0x5C == b) { temp += QString("\\x5C"); } else if (0x20 >= b) { temp += QString("\\x%1").arg(decimalToStrHex((quint8)b)); } else { temp += QString("%1").arg(b); } } return temp.trimmed(); } QByteArray QUIHelper::hexStrToByteArray(const QString &str) { QByteArray senddata; int hexdata, lowhexdata; int hexdatalen = 0; int len = str.length(); senddata.resize(len / 2); char lstr, hstr; for (int i = 0; i < len;) { hstr = str.at(i).toLatin1(); if (hstr == ' ') { i++; continue; } i++; if (i >= len) { break; } lstr = str.at(i).toLatin1(); hexdata = convertHexChar(hstr); lowhexdata = convertHexChar(lstr); if ((hexdata == 16) || (lowhexdata == 16)) { break; } else { hexdata = hexdata * 16 + lowhexdata; } i++; senddata[hexdatalen] = (char)hexdata; hexdatalen++; } senddata.resize(hexdatalen); return senddata; } char QUIHelper::convertHexChar(char ch) { if ((ch >= '0') && (ch <= '9')) { return ch - 0x30; } else if ((ch >= 'A') && (ch <= 'F')) { return ch - 'A' + 10; } else if ((ch >= 'a') && (ch <= 'f')) { return ch - 'a' + 10; } else { return (-1); } } QByteArray QUIHelper::asciiStrToByteArray(const QString &str) { QByteArray buffer; int len = str.length(); QString letter; QString hex; for (int i = 0; i < len; i++) { letter = str.at(i); if (letter == "") { i++; letter = str.mid(i, 1); if (letter == "x") { i++; hex = str.mid(i, 2); buffer.append(strHexToDecimal(hex)); i++; continue; } else if (letter == "N") { i++; hex = str.mid(i, 1); if (hex == "U") { i++; hex = str.mid(i, 1); if (hex == "L") { //NUL=0x00 buffer.append((char)0x00); continue; } } else if (hex == "A") { i++; hex = str.mid(i, 1); if (hex == "K") { //NAK=0x15 buffer.append(0x15); continue; } } } else if (letter == "S") { i++; hex = str.mid(i, 1); if (hex == "O") { i++; hex = str.mid(i, 1); if (hex == "H") { //SOH=0x01 buffer.append(0x01); continue; } else { //SO=0x0E buffer.append(0x0E); i--; continue; } } else if (hex == "T") { i++; hex = str.mid(i, 1); if (hex == "X") { //STX=0x02 buffer.append(0x02); continue; } } else if (hex == "I") { //SI=0x0F buffer.append(0x0F); continue; } else if (hex == "Y") { i++; hex = str.mid(i, 1); if (hex == "N") { //SYN=0x16 buffer.append(0x16); continue; } } else if (hex == "U") { i++; hex = str.mid(i, 1); if (hex == "B") { //SUB=0x1A buffer.append(0x1A); continue; } } } else if (letter == "E") { i++; hex = str.mid(i, 1); if (hex == "T") { i++; hex = str.mid(i, 1); if (hex == "X") { //ETX=0x03 buffer.append(0x03); continue; } else if (hex == "B") { //ETB=0x17 buffer.append(0x17); continue; } } else if (hex == "O") { i++; hex = str.mid(i, 1); if (hex == "T") { //EOT=0x04 buffer.append(0x04); continue; } } else if (hex == "N") { i++; hex = str.mid(i, 1); if (hex == "Q") { //ENQ=0x05 buffer.append(0x05); continue; } } else if (hex == "M") { //EM=0x19 buffer.append(0x19); continue; } else if (hex == "S") { i++; hex = str.mid(i, 1); if (hex == "C") { //ESC=0x1B buffer.append(0x1B); continue; } } } else if (letter == "A") { i++; hex = str.mid(i, 1); if (hex == "C") { i++; hex = str.mid(i, 1); if (hex == "K") { //ACK=0x06 buffer.append(0x06); continue; } } } else if (letter == "B") { i++; hex = str.mid(i, 1); if (hex == "E") { i++; hex = str.mid(i, 1); if (hex == "L") { //BEL=0x07 buffer.append(0x07); continue; } } else if (hex == "S") { //BS=0x08 buffer.append(0x08); continue; } } else if (letter == "C") { i++; hex = str.mid(i, 1); if (hex == "R") { //CR=0x0D buffer.append(0x0D); continue; } else if (hex == "A") { i++; hex = str.mid(i, 1); if (hex == "N") { //CAN=0x18 buffer.append(0x18); continue; } } } else if (letter == "D") { i++; hex = str.mid(i, 1); if (hex == "L") { i++; hex = str.mid(i, 1); if (hex == "E") { //DLE=0x10 buffer.append(0x10); continue; } } else if (hex == "C") { i++; hex = str.mid(i, 1); if (hex == "1") { //DC1=0x11 buffer.append(0x11); continue; } else if (hex == "2") { //DC2=0x12 buffer.append(0x12); continue; } else if (hex == "3") { //DC3=0x13 buffer.append(0x13); continue; } else if (hex == "4") { //DC2=0x14 buffer.append(0x14); continue; } } } else if (letter == "F") { i++; hex = str.mid(i, 1); if (hex == "F") { //FF=0x0C buffer.append(0x0C); continue; } else if (hex == "S") { //FS=0x1C buffer.append(0x1C); continue; } } else if (letter == "H") { i++; hex = str.mid(i, 1); if (hex == "T") { //HT=0x09 buffer.append(0x09); continue; } } else if (letter == "L") { i++; hex = str.mid(i, 1); if (hex == "F") { //LF=0x0A buffer.append(0x0A); continue; } } else if (letter == "G") { i++; hex = str.mid(i, 1); if (hex == "S") { //GS=0x1D buffer.append(0x1D); continue; } } else if (letter == "R") { i++; hex = str.mid(i, 1); if (hex == "S") { //RS=0x1E buffer.append(0x1E); continue; } } else if (letter == "U") { i++; hex = str.mid(i, 1); if (hex == "S") { //US=0x1F buffer.append(0x1F); continue; } } else if (letter == "V") { i++; hex = str.mid(i, 1); if (hex == "T") { //VT=0x0B buffer.append(0x0B); continue; } } else if (letter == "") { //如果連著的是多個\\則對應添加\對應的16進制0x5C buffer.append(0x5C); continue; } else { //將對應的\[前面的\\也要加入 buffer.append(0x5C); buffer.append(letter.toLatin1()); continue; } } buffer.append(str.mid(i, 1).toLatin1()); } return buffer; } QString QUIHelper::byteArrayToHexStr(const QByteArray &data) { QString temp = ""; QString hex = data.toHex(); for (int i = 0; i < hex.length(); i = i + 2) { temp += hex.mid(i, 2) + " "; } return temp.trimmed().toUpper(); }/<code>