转十进制：
41BD(16)
=4*163+1*162+11*161+13*160
=16384+256+176+13
=16829
A10C.8(16)
=10*163+1*162+0*161+12*160+8*16-1
=40960+256+0+12+0.5
=41228.5
146.1(8)
=1*82+4*81+6*80+1*8-1
=64+32+6+0.125
=102.125
5312.2(8)
=5*83+3*82+1*81+2*80+2*8-1
=2560+192+8+2+0.25
=2762.25
11001.001(2)
=1*24+1*23+0+0+1*20+0+0+1*2-3
=16+8+1+0.125
=25.125
1101101.11(2)
=1*26+1*25+0+1*23+1*22+0+1*20+1*2-1+1*2-2
=64+32+8+4+1+0.5+0.25
=109.75
十六转八
4CD5.B3
=46320.546
八转十六
25671.23
=2BB9.4C