HTML and XHTML uses standard 7-BIT ASCII when transmitting data over the Web.
HTML与XHTML都是使用标准的7-位 ASCII码来进行页面间数据的传输的
7-BIT ASCII represents 128 different character values (0-127).
7-位ASCII码代表了128个不同的字符值(0-127)
7-BIT Printable ASCII Characters
可打印的7-BIT ASCII字符
结果
描述
实体数
space 间隙
!
exclamation mark 感叹号
!
"
quotation mark 双引号
"
#
number sign 井号
#
$
dollar sign 美圆符
$
%
percent sign 百分符
%
&
ampersand
&
'
apostrophe 单引
'
(
left parenthesis
(
)
right parenthesis
)
*
asterisk
*
+
plus sign
+
,
comma
,
-
hyphen
-
.
period
.
/
slash
/
0
digit 0
0
1
digit 1
1
2
digit 2
2
3
digit 3
3
4
digit 4
4
5
digit 5
5
6
digit 6
6
7
digit 7
7
8
digit 8
8
9
digit 9
9
:
colon
:
;
semicolon
;
<
less-than
<
=
equals-to
=
>
greater-than
>
?
question mark
?
@
at sign
@
A
uppercase A
A
B
uppercase B
B
C
uppercase C
C
D
uppercase D
D
E
uppercase E
E
F
uppercase F
F
G
uppercase G
G
H
uppercase H
H
I
uppercase I
I
J
uppercase J
J
K
uppercase K
K
L
uppercase L
L
M
uppercase M
M
N
uppercase N
N
O
uppercase O
O
P
uppercase P
P
Q
uppercase Q
Q
R
uppercase R
R
S
uppercase S
S
T
uppercase T
T
U
uppercase U
U
V
uppercase V
V
W
uppercase W
W
X
uppercase X
X
Y
uppercase Y
Y
Z
uppercase Z
Z
[
left square bracket
[
backslash
\
]
right square bracket
]
^
caret
^
_
underscore
_
`
grave accent
`
a
lowercase a
a
b
lowercase b
b
c
lowercase c
c
d
lowercase d
d
e
lowercase e
e
f
lowercase f
f
g
lowercase g
g
h
lowercase h
h
i
lowercase i
i
j
lowercase j
j
k
lowercase k
k
l
lowercase l
l
m
lowercase m
m
n
lowercase n
n
o
lowercase o
o
p
lowercase p
p
q
lowercase q
q
r
lowercase r
r
s
lowercase s
s
t
lowercase t
t
u
lowercase u
u
v
lowercase v
v
w
lowercase w
w
x
lowercase x
x
y
lowercase y
y
z
lowercase z
z
{
left curly brace
{
|
vertical bar
|
}
right curly brace
}
~
tilde
~
7-BIT ASCII Device Control Characters
7位ASCII设备控制字符
ASCII device control characters were originally designed to control hardware devices like printers and tape drives. These characters have nothing to do inside any HTML document.
ASCII设备控制字符最初是用于控制硬件设备的，如：打印机、录音设备。这个字符不属于HTML文档。
结果
描述
实体数
NUL
null character
SOH
start of header
STX
start of text
ETX
end of text
EOT
end of transmission
ENQ
enquiry
ACK
acknowledge
BEL
bell (ring)
BS
backspace
HT
horizontal tab
LF
line feed
VT
vertical tab
FF
form feed
CR
carriage return
SO
shift out
SI
shift in
DLE
data link escape
DC1
device control 1
DC2
device control 2
DC3
device control 3
DC4
device control 4
NAK
negative acknowledge
SYN
synchronize
ETB
end transmission block
CAN
cancel
EM
end of medium
SUB
substitute
ESC
escape
FS
file separator
GS
group separator
RS
record separator
US
unit separator
DEL
delete (rubout)