Online ASC Code Query _css/html

The most widely used character set and its encoding in the current computer is by the U.S. National Standards Agency (ANSI) The developed ASCII code (AMERICAN Standard Code for Information interchange, United States Standards Information Interchange Code), which has been established as an international standard by the International Organization for Standardization (ISO), is known as ISO 646. Applies to all Latin letters, ASCII code has 7-bit code and 8-bit code two forms. because 1-bit binary numbers can represent (21=) 2 states: 0, 1, while the 2-bit binary number can represent (22) = 4 states: 00, 01, 10, 11, and so on, 7-bit binary number can represent (27=) 128 states, each State is uniquely compiled into a 7-bit binary code, corresponding to a character (or control code), these codes can be arranged into a decimal ordinal 0~127. Therefore, the 7-bit ASCII code is encoded with a seven-bit binary number, which can represent 128 characters. Numbers No. 0 to 32nd and 127th (total 34) are control characters or communication-specific characters, such as: LF (line feed), CR (carriage return), FF (page feed), DEL (delete), BEL (ringing), and so on; Communication special characters: SOH (text head), EOT (end), ACK (confirmation), etc. 33rd to 126th (Total 94) is a character, where 48th to 57th is 0~9 10 Arabic numerals, 65~90 is 26 uppercase English letters, 97~122 is 26 lowercase English letters, the remainder is some punctuation marks, arithmetic symbols and so on. Note: In the computer's storage unit, an ASCII value occupies one byte (8 bits) and its highest bit (B7) is used as the parity bit. The so-called parity check, refers to the code in the process used to verify whether there is a method of error, the general sub-parity check and parity two. Odd check rules: The correct code in one byte of the number of 1 must be odd, if not odd, the highest bit B7 Tim 1; Parity rule: The correct code in a byte of 1 must be an even number, if not even, the highest bit B7 add 1. in order to facilitate querying, the following ASCII code table is listed: number 128th to No. 255 is extended character (not used)
ASCII code	Keyboard	ASCII Code	Keyboard	ASCII Code	Keyboard	ASCII Code	Keyboard
27	Esc	32	SPACE	33	!	34	"
35	#	36	$	37	%	38	&
39	'	40	(	41	)	42	*
43	+	44	'	45	-	46	.
47	/	48	0	49	1	50	2
51	3	52	4	53	5	54	6
55	7	56	8	57	9	58	:
59	;	60	<	61	=	62	>
63	?	64	@	65	A	66	B
67	C	68	D	69	E	70	F
71	G	72	H	73	I	74	J
75	K	76	L	77	M	78	N
79	O	80	P	81	Q	82	R
83	S	84	T	85	U	86	V
87	W	88	X	89	Y	90	Z
91	[	92	\	93	]	94	^
95	_	96	`	97	A	98	B
99	C	100	D	101	E	102	F
103	G	104	H	105	I	106	J
107	K	108	L	109	M	110	N
111	O	112	P	113	Q	114	R
115	S	116	T	117	U	118	V
119	W	120	X	121	Y	122	Z
123	{	124	|	125	}	126	~

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