qbytearray初始化问题，太诡异了，有人知道啥原因不

Posted 2023-05-12

参考技术A QLabel *label = new QLabel(); QByteArray *tmpByte = new QByteArray(QString("hello world").toLocal8Bit()); label->setText(QString("%1").arg(tmpByte->size()) );

Qt每天一例14.char数组浅拷贝为QByteArray

char数组与QByteArray进行转换

     //浅拷贝初始化
    const char cart[] = 'c', 'a', '\\0', 'r', '\\0', 't';
    QByteArray ba1(QByteArray::fromRawData(cart, 6));

    //深拷贝
    QByteArray ba2(cart,6);