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@aszx87410
Created August 7, 2015 02:00
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Hello!
##10進位
20 = 2*10<sup>1</sup> + 0*10<sup>0</sup>
25 = 2*10<sup>1</sup> + 5*10<sup>0</sup>
234 = 2*10<sup>2</sup> +3*10<sup>1</sup> + 4*10<sup>0</sup>
##2進位
1
10
11
100
101
110
111
111 = 1*2<sup>2</sup> +1*2<sup>1</sup> + 1*2<sup>0</sup> = 7
10000 = 2<sup>4</sup> = 16
##16進位
8
9
A
B
C
D
E
F
10
10 = 1*16<sup>1</sup> +0*16<sup>0</sup> = 16
3F = 3*16<sup>1</sup> +15*16<sup>0</sup> = 63
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