ASCII码

C语言中，字符型存储的编码是ASCII码，ASCII码是一种用于显示现代英语字符的编码。ASCII码使用7位二进制数表示一个字符，共有128个字符。ASCII码的取值范围是$[0,127]$。ASCII码的具体内容如下：

ASCII码	字符	ASCII码	字符	ASCII码	字符	ASCII码	字符
$0$	[NUL]	$32$		$64$	@	$96$	`
$1$	[SOH]	$33$	!	$65$	A	$97$	a
$2$	[STX]	$34$	"	$66$	B	$98$	b
$3$	[ETX]	$35$	#	$67$	C	$99$	c
$4$	[EOT]	$36$	$	$68$	D	$100$	d
$5$	[ENQ]	$37$	%	$69$	E	$101$	e
$6$	[ACK]	$38$	&	$70$	F	$102$	f
$7$	[BEL]	$39$	'	$71$	G	$103$	g
$8$	[BS]	$40$	(	$72$	H	$104$	h
$9$	[HT]	$41$	)	$73$	I	$105$	i
$10$	[LF]	$42$	*	$74$	J	$106$	j
$11$	[VT]	$43$	+	$75$	K	$107$	k
$12$	[FF]	$44$	,	$76$	L	$108$	l
$13$	[CR]	$45$	-	$77$	M	$109$	m
$14$	[SO]	$46$	.	$78$	N	$110$	n
$15$	[SI]	$47$	/	$79$	O	$111$	o
$16$	[DLE]	$48$	0	$80$	P	$112$	p
$17$	[DC1]	$49$	1	$81$	Q	$113$	q
$18$	[DC2]	$50$	2	$82$	R	$114$	r
$19$	[DC3]	$51$	3	$83$	S	$115$	s
$20$	[DC4]	$52$	4	$84$	T	$116$	t
$21$	[NAK]	$53$	5	$85$	U	$117$	u
$22$	[SYN]	$54$	6	$86$	V	$118$	v
$23$	[ETB]	$55$	7	$87$	W	$119$	w
$24$	[CAN]	$56$	8	$88$	X	$120$	x
$25$	[EM]	$57$	9	$89$	Y	$121$	y
$26$	[SUB]	$58$	:	$90$	Z	$122$	z
$27$	[ESC]	$59$	;	$91$	[	$123$	{
$28$	[FS]	$60$	<	$92$	\	$124$	|
$29$	[GS]	$61$	=	$93$	]	$125$	}
$30$	[RS]	$62$	>	$94$	^	$126$	~
$31$	[US]	$63$	?	$95$	_	$127$	[DEL]

ASCII码的具体内容可以在这里查看。