这对于位掩码来说是微不足道的。想法是将字节分成较小的单元，并将它们专用于不同的元素。

Thats trivial with bit masks. Idea is to divide byte into smaller units and dedicate them to different elements.

对于2个数字，可能是这样的：前4位是number1，其余是number2。您将使用 number1 =（x& 0b11110000）>> 4 ， number2 =（x& 0b00001111）以检索值，以及 x =（number1 对其进行压缩。

For 2 numbers, it can be like this: first 4 bits are number1, rest are number2. You would use number1 = (x & 0b11110000) >> 4, number2 = (x & 0b00001111) to retrieve values, and x = (number1 << 4) | number2 to compress them.