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//int转字节数组 static QByteArray intToByte(int i); static QByteArray intToByteRec(int i); //字节数组转int static int byteToInt(const QByteArray &data); static int byteToIntRec(const QByteArray &data); static quint32 byteToUInt(const QByteArray &data); static quint32 byteToUIntRec(const QByteArray &data); //ushort转字节数组 static QByteArray ushortToByte(ushort i); static QByteArray ushortToByteRec(ushort i); //字节数组转ushort static int byteToUShort(const QByteArray &data); static int byteToUShortRec(const QByteArray &data);
QByteArray QUIHelper::intToByte(int i) { QByteArray result; result.resize(4); result[3] = (uchar)(0x000000ff & i); result[2] = (uchar)((0x0000ff00 & i) >> 8); result[1] = (uchar)((0x00ff0000 & i) >> 16); result[0] = (uchar)((0xff000000 & i) >> 24); return result; } QByteArray QUIHelper::intToByteRec(int i) { QByteArray result; result.resize(4); result[0] = (uchar)(0x000000ff & i); result[1] = (uchar)((0x0000ff00 & i) >> 8); result[2] = (uchar)((0x00ff0000 & i) >> 16); result[3] = (uchar)((0xff000000 & i) >> 24); return result; } int QUIHelper::byteToInt(const QByteArray &data) { int i = data.at(3) & 0x000000ff; i |= ((data.at(2) << 8) & 0x0000ff00); i |= ((data.at(1) << 16) & 0x00ff0000); i |= ((data.at(0) << 24) & 0xff000000); return i; } int QUIHelper::byteToIntRec(const QByteArray &data) { int i = data.at(0) & 0x000000ff; i |= ((data.at(1) << 8) & 0x0000ff00); i |= ((data.at(2) << 16) & 0x00ff0000); i |= ((data.at(3) << 24) & 0xff000000); return i; } quint32 QUIHelper::byteToUInt(const QByteArray &data) { quint32 i = data.at(3) & 0x000000ff; i |= ((data.at(2) << 8) & 0x0000ff00); i |= ((data.at(1) << 16) & 0x00ff0000); i |= ((data.at(0) << 24) & 0xff000000); return i; } quint32 QUIHelper::byteToUIntRec(const QByteArray &data) { quint32 i = data.at(0) & 0x000000ff; i |= ((data.at(1) << 8) & 0x0000ff00); i |= ((data.at(2) << 16) & 0x00ff0000); i |= ((data.at(3) << 24) & 0xff000000); return i; } QByteArray QUIHelper::ushortToByte(ushort i) { QByteArray result; result.resize(2); result[1] = (uchar)(0x000000ff & i); result[0] = (uchar)((0x0000ff00 & i) >> 8); return result; } QByteArray QUIHelper::ushortToByteRec(ushort i) { QByteArray result; result.resize(2); result[0] = (uchar)(0x000000ff & i); result[1] = (uchar)((0x0000ff00 & i) >> 8); return result; } int QUIHelper::byteToUShort(const QByteArray &data) { int i = data.at(1) & 0x000000FF; i |= ((data.at(0) << 8) & 0x0000FF00); if (i >= 32768) { i = i - 65536; } return i; } int QUIHelper::byteToUShortRec(const QByteArray &data) { int i = data.at(0) & 0x000000FF; i |= ((data.at(1) << 8) & 0x0000FF00); if (i >= 32768) { i = i - 65536; } return i; }
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