**用字符表示的十六進制值轉化為十進制，ASCII碼** bool ok;QStringList list;//初始化list的內容為：list = ("30", "31", "32", "33", "34", "35", "36", "37", "38", "39", "43", "44", "4D", "4E")//初始化listfor(int i =0 ;i<10;i++){QString temp = QString::number(30+i,10);list<<temp;}list<<"43"<<"44"<<"4D"<<"4E";qDebug()<<"list ="<<list; //list的十六進制數初始值for(int i = 0 ;i<list.size() ;i++){QString str_hex = list.at(i); //獲取十六進制數int dec = str_hex.toInt(&ok,16); //十六進制轉十進制char st = dec; //十進制數用char類型表示--->必須有此步直接轉化不可行QString str_ascii = QString(st); //轉化為ASCII值qDebug()<<" str_hex ="<<str_hex<<" dec ="<<dec<<" st ="<<st<<" ascii ="<<str_ascii;}//清空以便于之后的重新賦值list.clear();

ASCII碼值轉十六進制，十進制數

//初始化listfor(int i =0 ;i<10;i++){QString temp = QString::number(i,10);list<<temp;}list<<"C"<<"D"<<"M"<<"N";qDebug()<<"list ="<<list; //list的ASCII碼初始值for(int i = 0 ;i<list.size() ;i++){QString str_ascii = list.at(i); //獲取ASCII值QByteArray ascii = str_ascii.toLatin1(); //轉化為QByteArray類型便于轉化為十六進制QByteArray ascii_H = ascii.toHex(); //將ASCII值轉化為十六進制數值QString str_hex = QString(ascii_H).toUpper();//十六進制數的大寫表示int dec = str_hex.toInt(&ok,16); //十六進制數轉化為十進制數qDebug()<<" str_ascii ="<<str_ascii<<" ascii ="<<ascii<<" ascii_H ="<<ascii_H<<" str_hex ="<<str_hex<<" dec ="<<dec;}

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