我们知道,键盘上的每个键都对应着一个码,敲击键盘后,实际上是计算机硬件通过逻辑门电路产生二进制数字来表示这个码,然后传递给CPU。
下面总结下javascript 支持的char codes:
Key |
Code |
backspace |
8 |
tab |
9 |
enter |
13 |
shift |
16 |
ctrl |
17 |
alt |
18 |
pause/break |
19 |
caps lock |
20 |
escape |
27 |
page up |
33 |
page down |
34 |
end |
35 |
home |
36 |
left arrow |
37 |
up arrow |
38 |
right arrow |
39 |
down arrow |
40 |
insert |
45 |
delete |
46 |
0 |
48 |
1 |
49 |
2 |
50 |
3 |
51 |
4 |
52 |
5 |
53 |
6 |
54 |
7 |
55 |
8 |
56 |
9 |
57 |
a |
65 |
b |
66 |
c |
67 |
d |
68 |
|
|
Key |
Code |
e |
69 |
f |
70 |
g |
71 |
h |
72 |
i |
73 |
j |
74 |
k |
75 |
l |
76 |
m |
77 |
n |
78 |
o |
79 |
p |
80 |
q |
81 |
r |
82 |
s |
83 |
t |
84 |
u |
85 |
v |
86 |
w |
87 |
x |
88 |
y |
89 |
z |
90 |
left window key |
91 |
right window key |
92 |
select key |
93 |
numpad 0 |
96 |
numpad 1 |
97 |
numpad 2 |
98 |
numpad 3 |
99 |
numpad 4 |
100 |
numpad 5 |
101 |
numpad 6 |
102 |
numpad 7 |
103 |
|
|
Key |
Code |
numpad 8 |
104 |
numpad 9 |
105 |
multiply |
106 |
add |
107 |
subtract |
109 |
decimal point |
110 |
divide |
111 |
f1 |
112 |
f2 |
113 |
f3 |
114 |
f4 |
115 |
f5 |
116 |
f6 |
117 |
f7 |
118 |
f8 |
119 |
f9 |
120 |
f10 |
121 |
f11 |
122 |
f12 |
123 |
num lock |
144 |
scroll lock |
145 |
semi-colon |
186 |
equal sign |
187 |
comma |
188 |
dash |
189 |
period |
190 |
forward slash |
191 |
grave accent |
192 |
open bracket |
219 |
back slash |
220 |
close braket |
221 |
single quote |
222 |
|
|
|
参考:http://www.cambiaresearch.com/articles/15/javascript-char-codes-key-codesJavascript Char Codes (Key Codes)总结