QT下int与QByteArray的转换

int转QByteArray

 

QByteArray intToByte(int i) { QByteArray abyte0; abyte0.resize(4); abyte0[0] = (uchar) (0x000000ff & i); abyte0[1] = (uchar) ((0x0000ff00 & i) >> 8); abyte0[2] = (uchar) ((0x00ff0000 & i) >> 16); abyte0[3] = (uchar) ((0xff000000 & i) >> 24); return abyte0; }

 

QByteArray 转int

int bytesToInt(QByteArray bytes) { int addr = bytes[0] & 0x000000FF; addr |= ((bytes[1] << 8) & 0x0000FF00); addr |= ((bytes[2] << 16) & 0x00FF0000); addr |= ((bytes[3] << 24) & 0xFF000000); return addr; }

 

参考http://jackle-liu.javaeye.com/blog/51487