1.2 int【10进制】转QByteArray inti=2; QByteArrayres; res.resize(4); //小端存储,数据的低位在字节的高位 res[3]=(unsignedchar)(0x000000ff&i); res[2]=(unsignedchar)((0x0000ff00&i)>>8); res[1]=(unsignedchar)((0x00ff0000&i)>>16); res[0]=(unsignedchar)((0xff000000&i)>>24);...
6. QByteArray 转为unsigned char * QByteArray byteArray;unsignedchar*p=(unsignedchar*)byteArray.data(); 附注: 16进制字符转QByteArray QByteArray array;array.resize(2);// array[0]=0X00;// array[1]=0X04;boolok;charbyte1=QString("00").toInt(&ok,16);charbyte2=QString("04").toInt(...
QByteArray ba_fromhex = QByteArray::fromHex("48656c6c6f576f726c64"); qDebug() << "QByteArray from Hex: "<<ba_fromhex<<endl; int digit = 255; uint u_digit = 255u; qlonglong qll_digit = 255ll; qulonglong qull_digit = 255ull; qDebug()<<"number base 10 on int :"<< QBy...
QString string;int m;m=string.toInt(); QString转unsigned char QString string;bool ok;unsigned char uch = string.toInt(&ok, 16); 二、String的转换 String转QString QString string;std::string str;string = QString::fromStdString(str); 三、QByteArray的转换 QByteArray转char * char *ch; ...
QString datastr = msg.mid(24,8);//QString转数字=> packetLen=str.toUInt(&ok,16);//QByteArray存放的就是二进制数据,注意下=> QByteArray info; int packetLen = (unsigned char)info.at(2);//左移(扩大)=> packetLen<<=8;//数字转其他进制并输出字符串=>//int n = 63;QByteArray::number...
1、QString转QByteArray QByteArraybyte;QStringstring;byte=string.toLatin1(); 2、QByteArray转QString QByteArraybyte;QStringstring;string= QString(byte); 3、QString转String QStringstring;std::stringstr;str =string.toStdString(); 4、String转QString ...
1、QString转QByteArray QByteArray byte; QString string; byte = string.toLatin1(); 2、QByteArray转QString QByteArray byte; QString string; string = QString(byte); 3、QString转String QString string; std::string str; str = string.toStdString(); ...
int a = 5; qDebug() << QString::number(a, 10); // "5" double b = 1.2; QString str; str.setNum(b); qDebug() << str; // "1.2" 1 2 3 4 5 6 7 3. QString 转 const char * QString str = "abc"; QByteArray array = str.toLatin1(); ...
unsigned char puchar[1024]; uint8_t *qstring2uint8(QString string){ char * pchar; QByteArray temparr; int len; temparr = string.toLatin1(); pchar = temparr.data(); len = temparr.size(); //将得到的char类型转为uchar convertStrToUnChar(pchar,puchar,len); return puchar; } 数...