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c语言吧 关注:798,950贴子:4,355,213
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>0< 加载中...

关于八位-128的存储

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-128 = 0b10000000
-127 = 0b10000001
-126 = 0b10000010
-125 = 0b10000011
-124 = 0b10000100
-123 = 0b10000101
-122 = 0b10000110
-121 = 0b10000111
-120 = 0b10001000
-119 = 0b10001001
-118 = 0b10001010
-117 = 0b10001011
-116 = 0b10001100
-115 = 0b10001101
-114 = 0b10001110
-113 = 0b10001111
-112 = 0b10010000
-111 = 0b10010001
-110 = 0b10010010
-109 = 0b10010011
-108 = 0b10010100
-107 = 0b10010101
-106 = 0b10010110
-105 = 0b10010111
-104 = 0b10011000
-103 = 0b10011001
-102 = 0b10011010
-101 = 0b10011011
-100 = 0b10011100
-99 = 0b10011101
-98 = 0b10011110
-97 = 0b10011111
-96 = 0b10100000
-95 = 0b10100001
-94 = 0b10100010
-93 = 0b10100011
-92 = 0b10100100
-91 = 0b10100101
-90 = 0b10100110
-89 = 0b10100111
-88 = 0b10101000
-87 = 0b10101001
-86 = 0b10101010
-85 = 0b10101011
-84 = 0b10101100
-83 = 0b10101101
-82 = 0b10101110
-81 = 0b10101111
-80 = 0b10110000
-79 = 0b10110001
-78 = 0b10110010
-77 = 0b10110011
-76 = 0b10110100
-75 = 0b10110101
-74 = 0b10110110
-73 = 0b10110111
-72 = 0b10111000
-71 = 0b10111001
-70 = 0b10111010
-69 = 0b10111011
-68 = 0b10111100
-67 = 0b10111101
-66 = 0b10111110
-65 = 0b10111111
-64 = 0b11000000
-63 = 0b11000001
-62 = 0b11000010
-61 = 0b11000011
-60 = 0b11000100
-59 = 0b11000101
-58 = 0b11000110
-57 = 0b11000111
-56 = 0b11001000
-55 = 0b11001001
-54 = 0b11001010
-53 = 0b11001011
-52 = 0b11001100
-51 = 0b11001101
-50 = 0b11001110
-49 = 0b11001111
-48 = 0b11010000
-47 = 0b11010001
-46 = 0b11010010
-45 = 0b11010011
-44 = 0b11010100
-43 = 0b11010101
-42 = 0b11010110
-41 = 0b11010111
-40 = 0b11011000
-39 = 0b11011001
-38 = 0b11011010
-37 = 0b11011011
-36 = 0b11011100
-35 = 0b11011101
-34 = 0b11011110
-33 = 0b11011111
-32 = 0b11100000
-31 = 0b11100001
-30 = 0b11100010
-29 = 0b11100011
-28 = 0b11100100
-27 = 0b11100101
-26 = 0b11100110
-25 = 0b11100111
-24 = 0b11101000
-23 = 0b11101001
-22 = 0b11101010
-21 = 0b11101011
-20 = 0b11101100
-19 = 0b11101101
-18 = 0b11101110
-17 = 0b11101111
-16 = 0b11110000
-15 = 0b11110001
-14 = 0b11110010
-13 = 0b11110011
-12 = 0b11110100
-11 = 0b11110101
-10 = 0b11110110
-9 = 0b11110111
-8 = 0b11111000
-7 = 0b11111001
-6 = 0b11111010
-5 = 0b11111011
-4 = 0b11111100
-3 = 0b11111101
-2 = 0b11111110
-1 = 0b11111111
0 = 0b00000000
1 = 0b00000001
2 = 0b00000010
3 = 0b00000011
4 = 0b00000100
5 = 0b00000101
6 = 0b00000110
7 = 0b00000111
8 = 0b00001000
9 = 0b00001001
10 = 0b00001010
11 = 0b00001011
12 = 0b00001100
13 = 0b00001101
14 = 0b00001110
15 = 0b00001111
16 = 0b00010000
17 = 0b00010001
18 = 0b00010010
19 = 0b00010011
20 = 0b00010100
21 = 0b00010101
22 = 0b00010110
23 = 0b00010111
24 = 0b00011000
25 = 0b00011001
26 = 0b00011010
27 = 0b00011011
28 = 0b00011100
29 = 0b00011101
30 = 0b00011110
31 = 0b00011111
32 = 0b00100000
33 = 0b00100001
34 = 0b00100010
35 = 0b00100011
36 = 0b00100100
37 = 0b00100101
38 = 0b00100110
39 = 0b00100111
40 = 0b00101000
41 = 0b00101001
42 = 0b00101010
43 = 0b00101011
44 = 0b00101100
45 = 0b00101101
46 = 0b00101110
47 = 0b00101111
48 = 0b00110000
49 = 0b00110001
50 = 0b00110010
51 = 0b00110011
52 = 0b00110100
53 = 0b00110101
54 = 0b00110110
55 = 0b00110111
56 = 0b00111000
57 = 0b00111001
58 = 0b00111010
59 = 0b00111011
60 = 0b00111100
61 = 0b00111101
62 = 0b00111110
63 = 0b00111111
64 = 0b01000000
65 = 0b01000001
66 = 0b01000010
67 = 0b01000011
68 = 0b01000100
69 = 0b01000101
70 = 0b01000110
71 = 0b01000111
72 = 0b01001000
73 = 0b01001001
74 = 0b01001010
75 = 0b01001011
76 = 0b01001100
77 = 0b01001101
78 = 0b01001110
79 = 0b01001111
80 = 0b01010000
81 = 0b01010001
82 = 0b01010010
83 = 0b01010011
84 = 0b01010100
85 = 0b01010101
86 = 0b01010110
87 = 0b01010111
88 = 0b01011000
89 = 0b01011001
90 = 0b01011010
91 = 0b01011011
92 = 0b01011100
93 = 0b01011101
94 = 0b01011110
95 = 0b01011111
96 = 0b01100000
97 = 0b01100001
98 = 0b01100010
99 = 0b01100011
100 = 0b01100100
101 = 0b01100101
102 = 0b01100110
103 = 0b01100111
104 = 0b01101000
105 = 0b01101001
106 = 0b01101010
107 = 0b01101011
108 = 0b01101100
109 = 0b01101101
110 = 0b01101110
111 = 0b01101111
112 = 0b01110000
113 = 0b01110001
114 = 0b01110010
115 = 0b01110011
116 = 0b01110100
117 = 0b01110101
118 = 0b01110110
119 = 0b01110111
120 = 0b01111000
121 = 0b01111001
122 = 0b01111010
123 = 0b01111011
124 = 0b01111100
125 = 0b01111101
126 = 0b01111110
PS D:\codes\test\build>


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代码:
#include <stdint.h>
#include <stdio.h>
#include <string.h>
int main(){
for (int8_t i = -128; i < 127; i++) {
printf("%d = 0b", i);
for (int j = 7; j >= 0; j--)
printf("%d", (i >> j) & (0b01));
printf("\n"); }}


2025-05-20 12:32:02
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我是傻逼


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宝宝好棒


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那么为什么不直接%b呢


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