我有一个数据样本:byte[]b=newbyte[]{120,1,-67,-107,-51,106,20,81,16,-123,107,18,-51,-60,31,-30,117,-4,-53,-60,-123,25,70,71,23,-111,89,12,8,-83,49,4,-14,-93,-63,73,32,89,-55,-112,-123,10,-30,66,69,-110,69,-64,-107,-77,8,-72,21,23,-82,5,-97,-64,55,-48,-73,-16,97,4,-3,14,-23,-110,75,59,125,39,8,-10,-123,51