ASCII two-dimensional table

ASCII values can be roughly divided into three parts.

Part 1There are 32 characters in total from 00 h to 1fh, which are generally used for controlling or controlling. Some characters can be displayed on the screen, some of them cannot be displayed on the screen, but can see the effect (such as the line character and character ). See the following table:

Part 2There are 96 characters in total from 20 h to 7 FH. These 95 characters are used to represent Arabic numerals, English letters and sizes, and base indexes, including symbols, etc, can be displayed on the screen. See the following table:

ASCII delimiter		Character		ASCII delimiter		Character		ASCII delimiter		Character		ASCII delimiter		Character
Progress 10	Hexadecimal			Progress 10	Hexadecimal			Progress 10	Hexadecimal			Progress 10	Hexadecimal
032	20			056	38	8		080	50	P		104	68	H
033	21	!		057	39	9		081	51	Q		105	69	I
034	22	"		058	3A	:		082	52	R		106	6a	J
035	23	#		059	3b	;		083	53	S		107	6b	K
036	24	$		060	3c	<		084	54	T		108	6c	L
037	25	%		061	3D	=		085	55	U		109	6d	M
038	26	&		062	3E	>		086	56	V		110	6e	N
039	27	'		063	3f	?		087	57	W		111	6f	O
040	28	(		064	40	@		088	58	X		112	70	P
041	29	)		065	41	A		089	59	Y		113	71	Q
042	2a	*		066	42	B		090	5A	Z		114	72	R
043	2b	+		067	43	C		091	5b	[		115	73	S
044	2c	,		068	44	D		092	5C	/		116	74	T
045	2d	-		069	45	E		093	5D	]		117	75	U
046	2e	.		070	46	F		094	5E	^		118	76	V
047	2f	/		071	47	G		095	5f	_		119	77	W
048	30	0		072	48	H		096	60	'		120	78	X
049	31	1		073	49	I		097	61	A		121	79	Y
050	32	2		074	4A	J		098	62	B		122	7A	Z
051	33	3		075	4b	K		099	63	C		123	7b	{
052	34	4		076	4C	L		100	64	D		124	7c	|
053	35	5		077	4d	M		101	65	E		125	7D	}
054	36	6		078	4e	N		102	66	F		126	7E	~
055	37	7		079	4f	O		103	67	G		127	7f

Part 3There are a total of 128 characters from 80 h to 0ffh. Generally, they are regarded as "character filling". These 128 character Filling Characters are ASCII characters developed by IBM and are not standard. These characters are used to represent frames, audios, and other non-English letters in mainland China.