Question

将二进制数1011011.11转换为十进制数？

Answer 1

整数部分 1011011 看成 0x5b（16进制） = 5*16+11 = 91
0.11 = 1*2^-1 + 1*2^-2 = 0.5 + 0.25 = 0.75
加起来就是 91.75

Answer 2

1011011.11
=2^6+2^4+2^3+2+1+1/2+1/4
=64+16+8+2+1+0.5+0.25
=91.75
望采纳，谢谢