十六进制--十进制--二进制对照表
|
decimal |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
0 |
|
hexadec |
9 |
A |
B |
C |
D |
E |
F |
0 |
|
binary |
1001 |
1010 |
1011 |
1100 |
1101 |
1110 |
1111 |
0000 |
|
decimal |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
|
hexadec |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
|
binary |
0001 |
0010 |
0011 |
0100 |
0101 |
0110 |
0111 |
1000 |
负数简写表
|
decimal |
-1 |
-2 |
-3 |
-4 |
-5 |
-6 |
-7 |
-8 |
|
hexadec |
FF |
FE |
FD |
FC |
FB |
FA |
F9 |
F8 |
|
decimal |
-9 |
-10 |
-11 |
-12 |
-13 |
-14 |
-15 |
0 |
|
hexadec |
F7 |
F6 |
F5 |
F4 |
F3 |
F2 |
F1 |
0000 |
F F异或任何数（1-E ）都等于F-这个数
异或
位运算 相同出0，不同出1
例：5 xor 3
0101 xor 0011 = 0110 =6
移位运算
左移一位 从第左到右 从第一个1开始 向前移动一个字节，末尾填0
例： 5 << 1 0101 << 1 = 101 0=10
总结 左移一位相当于乘以2 右移一位相当于除以2
左旋圆
第一个字节左移1位 第二个字节左移2位 第三个字节左移3位…… 8次为一周，一个数旋圆8次之后还是他本身
反转位
位运算 1变成0 0变成1
例：5 0101 反转之后 1010
23 反转位之后 DC
0010 0011
1101 1100
与运算
有0出0 全1出1
或运算
有1出1 全0出0
十六进制异或表
|
1 |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
B |
C |
D |
E |
F |
|
1 |
0 |
3 |
2 |
5 |
4 |
7 |
6 |
9 |
8 |
B |
A |
D |
C |
F |
E |
|
|
2 |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
B |
C |
D |
E |
F |
|
2 |
3 |
0 |
1 |
6 |
7 |
4 |
5 |
A |
B |
8 |
9 |
E |
F |
C |
D |
|
|
3 |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
B |
C |
D |
E |
F |
|
3 |
2 |
1 |
0 |
7 |
6 |
5 |
4 |
B |
A |
9 |
8 |
F |
E |
D |
C |
|
|
4 |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
B |
C |
D |
E |
F |
|
4 |
5 |
6 |
7 |
0 |
1 |
2 |
3 |
C |
D |
E |
F |
8 |
9 |
A |
B |
|
|
5 |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
B |
C |
D |
E |
F |
|
5 |
4 |
7 |
6 |
1 |
0 |
3 |
2 |
D |
C |
F |
E |
9 |
8 |
B |
A |
|
|
6 |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
B |
C |
D |
E |
F |
|
6 |
7 |
4 |
5 |
2 |
3 |
0 |
1 |
E |
F |
C |
D |
A |
B |
8 |
9 |
|
|
7 |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
B |
C |
D |
E |
F |
|
7 |
6 |
5 |
4 |
3 |
2 |
1 |
0 |
F |
E |
D |
C |
B |
A |
9 |
8 |
|
|
8 |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
B |
C |
D |
E |
F |
|
8 |
9 |
A |
B |
C |
D |
E |
F |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
|
|
9 |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
B |
C |
D |
E |
F |
|
9 |
8 |
B |
A |
D |
C |
F |
E |
1 |
0 |
3 |
2 |
5 |
4 |
7 |
6 |
|
|
A |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
B |
C |
D |
E |
F |
|
A |
B |
8 |
9 |
E |
F |
C |
D |
2 |
3 |
0 |
1 |
6 |
7 |
4 |
5 |
|
|
B |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
B |
C |
D |
E |
F |
|
B |
A |
9 |
8 |
F |
E |
D |
C |
3 |
2 |
1 |
0 |
7 |
6 |
5 |
4 |
|
|
C |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
B |
C |
D |
E |
F |
|
C |
D |
E |
F |
8 |
9 |
A |
B |
4 |
5 |
6 |
7 |
0 |
1 |
2 |
3 |
|
|
D |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
B |
C |
D |
E |
F |
|
D |
C |
F |
E |
9 |
8 |
B |
A |
5 |
4 |
7 |
6 |
1 |
0 |
3 |
2 |
|
|
E |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
B |
C |
D |
E |
F |
|
E |
F |
C |
D |
A |
B |
8 |
9 |
6 |
7 |
4 |
5 |
2 |
3 |
0 |
1 |
|
|
F |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
A |
B |
C |
D |
E |
F |
|
F |
E |
D |
C |
B |
A |
9 |
8 |
7 |
6 |
5 |
4 |
3 |
2 |
1 |
0 |
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