18 byte - aligned : a bit in a bitstream is byte - aligned when its position is an integer multiple of 8 bits from the first bit in the bitstream 字節(jié):一個8位的序列,它的讀、寫都是從左邊的最高位開始,到右邊的最低位結(jié)束。當(dāng)用“字節(jié)”表示一個數(shù)據(jù)位的序列時,高位的數(shù)據(jù)總是最先處理的。