下列字符中,其ASCII码值最小的是 在下列字符中,ASCII码值最小的一个是( ) A、空格 ...

\u4e0b\u5217\u5b57\u7b26\u4e2d\uff0cASCII\u7801\u503c\u6700\u5c0f\u7684\u662f A\uff1aa B\uff1aA C\uff1ax D\uff1aY

\u4e0b\u5217\u5b57\u7b26\u4e2d\uff0cASCII\u7801\u503c\u6700\u5c0f\u7684\u662fA\u3002\u6839\u636e\u7801\u503c\u7531\u5c0f\u5230\u5927\u7684\u6392\u5217\u987a\u5e8f\u662f\uff1a\u63a7\u5236\u7b26\u3001\u6570\u5b57\u7b26\u3001\u5927\u5199\u82f1\u6587\u5b57\u6bcd\u3001\u5c0f\u5199\u82f1\u6587\u5b57\u6bcd\u3002A\u6700\u524d\uff0c\u53c8\u5927\u5199\u5b57\u6bcd\u6bd4\u5c0f\u5199\u5b57\u6bcd\u503c\u6700\u5c0f\u3002
\u5e38\u89c1ASCII\u7801\u7684\u5927\u5c0f\u89c4\u5219\uff1a0~9<A~Z<a~z\u3002
1\uff09\u6570\u5b57\u6bd4\u5b57\u6bcd\u8981\u5c0f\u3002\u5982 \u201c7\u201d<\u201cF\u201d\uff1b
2\uff09\u6570\u5b570\u6bd4\u6570\u5b579\u8981\u5c0f\uff0c\u5e76\u63090\u52309\u987a\u5e8f\u9012\u589e\u3002\u5982 \u201c3\u201d<\u201c8\u201d \uff1b
3\uff09\u5b57\u6bcdA\u6bd4\u5b57\u6bcdZ\u8981\u5c0f\uff0c\u5e76\u6309A\u5230Z\u987a\u5e8f\u9012\u589e\u3002\u5982\u201cA\u201d<\u201cZ\u201d \uff1b
4\uff09\u540c\u4e2a\u5b57\u6bcd\u7684\u5927\u5199\u5b57\u6bcd\u6bd4\u5c0f\u5199\u5b57\u6bcd\u8981\u5c0f32\u3002\u5982\u201cA\u201d<\u201ca\u201d \u3002
\u51e0\u4e2a\u5e38\u89c1\u5b57\u6bcd\u7684ASCII\u7801\u5927\u5c0f\uff1a \u201cA\u201d\u4e3a65\uff1b\u201ca\u201d\u4e3a97\uff1b\u201c0\u201d\u4e3a 48\u3002

\u6269\u5c55\u8d44\u6599
ASCII \u7801\u4f7f\u7528\u6307\u5b9a\u76847 \u4f4d\u62168 \u4f4d\u4e8c\u8fdb\u5236\u6570\u7ec4\u5408\u6765\u8868\u793a128 \u6216256 \u79cd\u53ef\u80fd\u7684\u5b57\u7b26\u3002\u6807\u51c6ASCII \u7801\u4e5f\u53eb\u57fa\u7840ASCII\u7801\uff0c\u4f7f\u75287 \u4f4d\u4e8c\u8fdb\u5236\u6570\uff08\u5269\u4e0b\u76841\u4f4d\u4e8c\u8fdb\u5236\u4e3a0\uff09\u6765\u8868\u793a\u6240\u6709\u7684\u5927\u5199\u548c\u5c0f\u5199\u5b57\u6bcd\uff0c\u6570\u5b570 \u52309\u3001\u6807\u70b9\u7b26\u53f7\uff0c\u4ee5\u53ca\u5728\u7f8e\u5f0f\u82f1\u8bed\u4e2d\u4f7f\u7528\u7684\u7279\u6b8a\u63a7\u5236\u5b57\u7b26 \u3002\u5176\u4e2d\uff1a
0\uff5e31\u53ca127(\u517133\u4e2a)\u662f\u63a7\u5236\u5b57\u7b26\u6216\u901a\u4fe1\u4e13\u7528\u5b57\u7b26\uff08\u5176\u4f59\u4e3a\u53ef\u663e\u793a\u5b57\u7b26\uff09\uff0c\u5982\u63a7\u5236\u7b26\uff1aLF\uff08\u6362\u884c\uff09\u3001CR\uff08\u56de\u8f66\uff09\u3001FF\uff08\u6362\u9875\uff09\u3001DEL\uff08\u5220\u9664\uff09\u3001BS\uff08\u9000\u683c)\u3001BEL\uff08\u54cd\u94c3\uff09\u7b49\u3002
\u901a\u4fe1\u4e13\u7528\u5b57\u7b26\uff1aSOH\uff08\u6587\u5934\uff09\u3001EOT\uff08\u6587\u5c3e\uff09\u3001ACK\uff08\u786e\u8ba4\uff09\u7b49\uff1bASCII\u503c\u4e3a8\u30019\u300110 \u548c13 \u5206\u522b\u8f6c\u6362\u4e3a\u9000\u683c\u3001\u5236\u8868\u3001\u6362\u884c\u548c\u56de\u8f66\u5b57\u7b26\u3002\u5b83\u4eec\u5e76\u6ca1\u6709\u7279\u5b9a\u7684\u56fe\u5f62\u663e\u793a\uff0c\u4f46\u4f1a\u4f9d\u4e0d\u540c\u7684\u5e94\u7528\u7a0b\u5e8f\uff0c\u800c\u5bf9\u6587\u672c\u663e\u793a\u6709\u4e0d\u540c\u7684\u5f71\u54cd \u3002
32\uff5e126(\u517195\u4e2a)\u662f\u5b57\u7b26(32\u662f\u7a7a\u683c\uff09\uff0c\u5176\u4e2d48\uff5e57\u4e3a0\u52309\u5341\u4e2a\u963f\u62c9\u4f2f\u6570\u5b57\u3002
65\uff5e90\u4e3a26\u4e2a\u5927\u5199\u82f1\u6587\u5b57\u6bcd\uff0c97\uff5e122\u53f7\u4e3a26\u4e2a\u5c0f\u5199\u82f1\u6587\u5b57\u6bcd\uff0c\u5176\u4f59\u4e3a\u4e00\u4e9b\u6807\u70b9\u7b26\u53f7\u3001\u8fd0\u7b97\u7b26\u53f7\u7b49\u3002
\u53c2\u8003\u8d44\u6599\u6765\u6e90\uff1a\u767e\u5ea6\u767e\u79d1-ASCII

\u6700\u5c0f\u7684\u662f\u7a7a\u683c
\u6700\u5927\u7684\u662fa

\u5e38\u89c1ASCII\u7801\u7684\u5927\u5c0f\u89c4\u5219\uff1a0~9\uff1cA~Z\uff1ca~z
1\uff09\u6570\u5b57\u6bd4\u5b57\u6bcd\u8981\u5c0f\u3002\u5982 \u201c7\u201d\uff1c\u201cF\u201d\uff1b
2\uff09\u6570\u5b570\u6bd4\u6570\u5b579\u8981\u5c0f\uff0c\u5e76\u63090\u52309\u987a\u5e8f\u9012\u589e\u3002\u5982 \u201c3\u201d\uff1c\u201c8\u201d \uff1b
3\uff09\u5b57\u6bcdA\u6bd4\u5b57\u6bcdZ\u8981\u5c0f\uff0c\u5e76\u6309A\u5230Z\u987a\u5e8f\u9012\u589e\u3002\u5982\u201cA\u201d\uff1c\u201cZ\u201d \uff1b
4\uff09\u540c\u4e2a\u5b57\u6bcd\u7684\u5927\u5199\u5b57\u6bcd\u6bd4\u5c0f\u5199\u5b57\u6bcd\u8981\u5c0f32\u3002\u5982\u201cA\u201d\uff1c\u201ca\u201d \u3002
\u8bb0\u4f4f\u51e0\u4e2a\u5e38\u89c1\u5b57\u6bcd\u7684ASCII\u7801\u5927\u5c0f\uff1a \u201cA\u201d\u4e3a65\uff1b\u201ca\u201d\u4e3a97\uff1b\u201c0\u201d\u4e3a 48\u3002

\u952e\u76d8\u5e38\u7528ASCII\u7801
ESC\u952e VK_ESCAPE (27)
\u56de\u8f66\u952e\uff1a VK_RETURN (13)
TAB\u952e\uff1a VK_TAB (9)
Caps Lock\u952e\uff1a VK_CAPITAL (20)
Shift\u952e\uff1a VK_SHIFT (16)
Ctrl\u952e\uff1a VK_CONTROL (17)
Alt\u952e\uff1a VK_MENU (18)
\u7a7a\u683c\u952e\uff1a VK_SPACE (32)
\u9000\u683c\u952e\uff1a VK_BACK (8)
\u5de6\u5fbd\u6807\u952e\uff1a VK_LWIN (91)
\u53f3\u5fbd\u6807\u952e\uff1a VK_LWIN (92)
\u9f20\u6807\u53f3\u952e\u5feb\u6377\u952e\uff1aVK_APPS (93)
Insert\u952e\uff1a VK_INSERT (45)
Home\u952e\uff1a VK_HOME (36)
Page Up\uff1a VK_PRIOR (33)
PageDown\uff1a VK_NEXT (34)
End\u952e\uff1a VK_END (35)
Delete\u952e\uff1a VK_DELETE (46)
\u65b9\u5411\u952e(\u2190)\uff1a VK_LEFT (37)
\u65b9\u5411\u952e(\u2191)\uff1a VK_UP (38)
\u65b9\u5411\u952e(\u2192)\uff1a VK_RIGHT (39)
\u65b9\u5411\u952e(\u2193)\uff1a VK_DOWN (40)
F1\u952e\uff1a VK_F1 (112)
F2\u952e\uff1a VK_F2 (113)
F3\u952e\uff1a VK_F3 (114)
F4\u952e\uff1a VK_F4 (115)
F5\u952e\uff1a VK_F5 (116)
F6\u952e\uff1a VK_F6 (117)
F7\u952e\uff1a VK_F7 (118)
F8\u952e\uff1a VK_F8 (119)
F9\u952e\uff1a VK_F9 (120)
F10\u952e\uff1a VK_F10 (121)
F11\u952e\uff1a VK_F11 (122)
F12\u952e\uff1a VK_F12 (123)
Num Lock\u952e\uff1a VK_NUMLOCK (144)
\u5c0f\u952e\u76d80\uff1a VK_NUMPAD0 (48)
\u5c0f\u952e\u76d81\uff1a VK_NUMPAD0 (49)
\u5c0f\u952e\u76d82\uff1a VK_NUMPAD0 (50)
\u5c0f\u952e\u76d83\uff1a VK_NUMPAD0 (51)
\u5c0f\u952e\u76d84\uff1a VK_NUMPAD0 (52)
\u5c0f\u952e\u76d85\uff1a VK_NUMPAD0 (53)
\u5c0f\u952e\u76d86\uff1a VK_NUMPAD0 (54)
\u5c0f\u952e\u76d87\uff1a VK_NUMPAD0 (55)
\u5c0f\u952e\u76d88\uff1a VK_NUMPAD0 (56)
\u5c0f\u952e\u76d89\uff1a VK_NUMPAD0 (57)
\u5c0f\u952e\u76d8.\uff1a VK_DECIMAL (46)
\u5c0f\u952e\u76d8*\uff1a VK_MULTIPLY (42)
\u5c0f\u952e\u76d8+\uff1a VK_ADD (43)
\u5c0f\u952e\u76d8-\uff1a VK_SUBTRACT (45)
\u5c0f\u952e\u76d8/\uff1a VK_DIVIDE (47)
Pause Break\u952e\uff1a VK_PAUSE (19)
Scroll Lock\u952e\uff1a VK_SCROLL (145)


Bin Dec Hex \u7f29\u5199/\u5b57\u7b26 \u89e3\u91ca
00000000 0 00 NUL(null) \u7a7a\u5b57\u7b26
00000001 1 01 SOH(start of handling) \u6807\u9898\u5f00\u59cb
00000010 2 02 STX (start of text) \u6b63\u6587\u5f00\u59cb
00000011 3 03 ETX (end of text) \u6b63\u6587\u7ed3\u675f
00000100 4 04 EOT (end of transm-ission) \u4f20\u8f93\u7ed3\u675f
00000101 5 05 ENQ (enquiry) \u8bf7\u6c42
00000110 6 06 ACK (acknow-ledge) \u6536\u5230\u901a\u77e5
00000111 7 07 BEL (bell) \u54cd\u94c3
00001000 8 08 BS (backsp-ace) \u9000\u683c
00001001 9 09 HT (horizon-tal tab) \u6c34\u5e73\u5236\u8868\u7b26
00001010 10 0A LF (NL line feed, new line) \u6362\u884c\u952e
00001011 11 0B VT (vertical tab) \u5782\u76f4\u5236\u8868\u7b26
00001100 12 0C FF (NP form feed, new page) \u6362\u9875\u952e
00001101 13 0D CR (carriage return) \u56de\u8f66\u952e
00001110 14 0E SO (shift out) \u4e0d\u7528\u5207\u6362
00001111 15 0F SI (shift in) \u542f\u7528\u5207\u6362
00010000 16 10 DLE (data link escape) \u6570\u636e\u94fe\u8def\u8f6c\u4e49
00010001 17 11 DC1 (device control 1) \u8bbe\u5907\u63a7\u52361
00010010 18 12 DC2 (device control 2) \u8bbe\u5907\u63a7\u52362
00010011 19 13 DC3 (device control 3) \u8bbe\u5907\u63a7\u52363
00010100 20 14 DC4 (device control 4) \u8bbe\u5907\u63a7\u52364
00010101 21 15 NAK (negati-ve acknowl-edge) \u62d2\u7edd\u63a5\u6536
00010110 22 16 SYN (synchr-onous idle) \u540c\u6b65\u7a7a\u95f2
00010111 23 17 ETB (end of trans. block) \u4f20\u8f93\u5757\u7ed3\u675f
00011000 24 18 CAN (cancel) \u53d6\u6d88
00011001 25 19 EM (end of medium) \u4ecb\u8d28\u4e2d\u65ad
00011010 26 1A SUB (substit-ute) \u66ff\u8865
00011011 27 1B ESC (escape) \u6ea2\u51fa
00011100 28 1C FS (file separat-or) \u6587\u4ef6\u5206\u5272\u7b26
00011101 29 1D GS (group separat-or) \u5206\u7ec4\u7b26
00011110 30 1E RS (record separat-or) \u8bb0\u5f55\u5206\u79bb\u7b26
00011111 31 1F US (unit separat-or) \u5355\u5143\u5206\u9694\u7b26
00100000 32 20 \u7a7a\u683c
00100001 33 21 !
00100010 34 22 "
00100011 35 23 #
00100100 36 24 $
00100101 37 25 %
00100110 38 26 &
00100111 39 27 '
00101000 40 28 (
00101001 41 29 )
00101010 42 2A *
00101011 43 2B +
00101100 44 2C ,
00101101 45 2D -
00101110 46 2E .
00101111 47 2F /
00110000 48 30 0
\u7eed\u8868

00110001 49 31 1
00110010 50 32 2
00110011 51 33 3
00110100 52 34 4
00110101 53 35 5
00110110 54 36 6
00110111 55 37 7
00111000 56 38 8
00111001 57 39 9
00111010 58 3A :
00111011 59 3B ;
00111100 60 3C <
00111101 61 3D =
00111110 62 3E >
00111111 63 3F ?
01000000 64 40 @
01000001 65 41 A
01000010 66 42 B
01000011 67 43 C
01000100 68 44 D
01000101 69 45 E
01000110 70 46 F
01000111 71 47 G
01001000 72 48 H
01001001 73 49 I
01001010 74 4A J
01001011 75 4B K
01001100 76 4C L
01001101 77 4D M
01001110 78 4E N
01001111 79 4F O
01010000 80 50 P
01010001 81 51 Q
01010010 82 52 R
01010011 83 53 S
01010100 84 54 T
01010101 85 55 U
01010110 86 56 V
01010111 87 57 W
01011000 88 58 X
01011001 89 59 Y
01011010 90 5A Z
01011011 91 5B [
01011100 92 5C \
01011101 93 5D ]
01011110 94 5E ^
01011111 95 5F _
01100000 96 60 `
01100001 97 61 a
01100010 98 62 b

\u7eed\u8868

01100011 99 63 c
01100100 100 64 d
01100101 101 65 e
01100110 102 66 f
01100111 103 67 g
01101000 104 68 h
01101001 105 69 i
01101010 106 6A j
01101011 107 6B k
01101100 108 6C l
01101101 109 6D m
01101110 110 6E n
01101111 111 6F o
01110000 112 70 p
01110001 113 71 q
01110010 114 72 r
01110011 115 73 s
01110100 116 74 t
01110101 117 75 u
01110110 118 76 v
01110111 119 77 w
01111000 120 78 x
01111001 121 79 y
01111010 122 7A z
01111011 123 7B {
01111100 124 7C |
01111101 125 7D }
01111110 126 7E ~
01111111 127 7F DEL (delete) \u5220\u9664

ASCII码里边,符号在前,然后是大写字母,然后是小写字母。码表最好能背下来。

选A 因为ASCLL是按符号,再是小写字母,再是大写字母

选项 ASCII码
A)$ 36
B)J 74
C)b 98
D)T 84

查表,不然编个小程序。
#include<stdio.h>
main()
{
char c;
scanf("%c",&c);
printf("%d\n",c);
}

A

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