..........0xa.lfp10
应该是0xa.1fp10
a.1f是 1010 . 0001 1111
2的10次方是 1 0000 0000 00
1010 0001 1111 00 .0
10364 .0
_____________
a 0.1 0.0f
10+0.0625+0.05859375 = 10.12109375
x 1024 (2^10)
-------------------
10364
百度上搜来的,可不给分