1、十进制转其它进制

  1. (117)10->二进制 ``` 117/2 = 58…1 58/2 = 29…0 29/2 = 14…1 14/2 = 7…0 7/2 = 3…1 3/2 = 1…1 1/2 = 0…1

(117)10 = (1110101)2

  2. 2. (0.8125)10->二进制

0.8125 2 = 1.625 1 0.625 2 = 1.25 1 0.25 2 = 0.5 0 0.5 2 = 1.0 1

(0.8125)10 = (0.1011)2

  2. 3. (117)10->八进制

117/8 = 14…5 14/8 = 1…6 1/8 = 0…1

(117)10 = (165)8

  2. 4. (0.8125)10->八进制

0.8125 8 = 6.5 6 0.5 8 = 4.0 4

(0.8125)10 = (0.46)8

  1. <a name="kf9lC"></a>
  2. ## 2、二进制、八进制、十六进制的转换
  4. 1. 二进制<->八进制

(1101101.10101)2->八进制

001 101 101. 101 010 1 5 5. 5 2

(1101101.10101)2->(155.52)8

(345.64)8->二进制

011 100 101. 110 100

(345.64)8 = (11100101.1101)2

  2. 2. 二进制<->十六进制

(1101101.10101)2->十六进制

0110 1101. 1010 1000 6 D. A 8

(1101101.10101)2->(6D.A8)

(A8D.6C)16->二进制

1010 0100 1101 . 0110 1100

(A8D.A8)18 = (101001001101.011011)2 ```