1 <script type="text/javascript" language=JavaScript charset="UTF-8">
2 document.οnkeydοwn=
function(event){
3 var e = event || window.event || arguments.callee.caller.arguments[0
];
4 if(e && e.keyCode==27){
// 按 Esc
5 //要做的事情
6 }
7 if(e && e.keyCode==113){
// 按 F2
8 //要做的事情
9 }
10 if(e && e.keyCode==13){
// enter 键
11 //要做的事情
12 }
13 };
14 </script>
15 只要你定义了这些键的动作，你在浏览器里按下这些键就会响应，兼容目前所有浏览器。
1 js 里面的键盘事件经常用到，所以收集了键盘事件对应的键码来分享下：
2 keyCode 8 =
BackSpace BackSpace
3 keyCode 9 =
Tab Tab
4 keyCode 12 =
Clear
5 keyCode 13 =
Enter
6 keyCode 16 =
Shift_L
7 keyCode 17 =
Control_L
8 keyCode 18 =
Alt_L
9 keyCode 19 =
Pause
10 keyCode 20 =
Caps_Lock
11 keyCode 27 =
Escape Escape
12 keyCode 32 =
space
13 keyCode 33 =
Prior
14 keyCode 34 =
Next
15 keyCode 35 =
End
16 keyCode 36 =
Home
17 keyCode 37 =
Left
18 keyCode 38 =
Up
19 keyCode 39 =
Right
20 keyCode 40 =
Down
21 keyCode 41 =
Select
22 keyCode 42 =
Print
23 keyCode 43 =
Execute
24 keyCode 45 =
Insert
25 keyCode 46 =
Delete
26 keyCode 47 =
Help
27 keyCode 48 = 0
equal braceright
28 keyCode 49 = 1
exclam onesuperior
29 keyCode 50 = 2
quotedbl twosuperior
30 keyCode 51 = 3
section threesuperior
31 keyCode 52 = 4
dollar
32 keyCode 53 = 5
percent
33 keyCode 54 = 6
ampersand
34 keyCode 55 = 7
slash braceleft
35 keyCode 56 = 8
parenleft bracketleft
36 keyCode 57 = 9
parenright bracketright
37 keyCode 65 =
a A
38 keyCode 66 =
b B
39 keyCode 67 =
c C
40 keyCode 68 =
d D
41 keyCode 69 =
e E EuroSign
42 keyCode 70 =
f F
43 keyCode 71 =
g G
44 keyCode 72 =
h H
45 keyCode 73 =
i I
46 keyCode 74 =
j J
47 keyCode 75 =
k K
48 keyCode 76 =
l L
49 keyCode 77 =
m M mu
50 keyCode 78 =
n N
51 keyCode 79 =
o O
52 keyCode 80 =
p P
53 keyCode 81 =
q Q at
54 keyCode 82 =
r R
55 keyCode 83 =
s S
56 keyCode 84 =
t T
57 keyCode 85 =
u U
58 keyCode 86 =
v V
59 keyCode 87 =
w W
60 keyCode 88 =
x X
61 keyCode 89 =
y Y
62 keyCode 90 =
z Z
63 keyCode 96 =
KP_0 KP_0
64 keyCode 97 =
KP_1 KP_1
65 keyCode 98 =
KP_2 KP_2
66 keyCode 99 =
KP_3 KP_3
67 keyCode 100 =
KP_4 KP_4
68 keyCode 101 =
KP_5 KP_5
69 keyCode 102 =
KP_6 KP_6
70 keyCode 103 =
KP_7 KP_7
71 keyCode 104 =
KP_8 KP_8
72 keyCode 105 =
KP_9 KP_9
73 keyCode 106 =
KP_Multiply KP_Multiply
74 keyCode 107 =
KP_Add KP_Add
75 keyCode 108 =
KP_Separator KP_Separator
76 keyCode 109 =
KP_Subtract KP_Subtract
77 keyCode 110 =
KP_Decimal KP_Decimal
78 keyCode 111 =
KP_Divide KP_Divide
79 keyCode 112 =
F1
80 keyCode 113 =
F2
81 keyCode 114 =
F3
82 keyCode 115 =
F4
83 keyCode 116 =
F5
84 keyCode 117 =
F6
85 keyCode 118 =
F7
86 keyCode 119 =
F8
87 keyCode 120 =
F9
88 keyCode 121 =
F10
89 keyCode 122 =
F11
90 keyCode 123 =
F12
91 keyCode 124 =
F13
92 keyCode 125 =
F14
93 keyCode 126 =
F15
94 keyCode 127 =
F16
95 keyCode 128 =
F17
96 keyCode 129 =
F18
97 keyCode 130 =
F19
98 keyCode 131 =
F20
99 keyCode 132 =
F21
100 keyCode 133 =
F22
101 keyCode 134 =
F23
102 keyCode 135 =
F24
103 keyCode 136 =
Num_Lock
104 keyCode 137 =
Scroll_Lock
105 keyCode 187 =
acute grave
106 keyCode 188 =
comma semicolon
107 keyCode 189 =
minus underscore
108 keyCode 190 =
period colon
109 keyCode 192 =
numbersign apostrophe
110 keyCode 210 =
plusminus hyphen macron
111 keyCode 211 =
112 keyCode 212 =
copyright registered
113 keyCode 213 =
guillemotleft guillemotright
114 keyCode 214 =
masculine ordfeminine
115 keyCode 215 =
ae AE
116 keyCode 216 =
cent yen
117 keyCode 217 =
questiondown exclamdown
118 keyCode 218 =
onequarter onehalf threequarters
119 keyCode 220 =
less greater bar
120 keyCode 221 =
plus asterisk asciitilde
121 keyCode 227 =
multiply division
122 keyCode 228 =
acircumflex Acircumflex
123 keyCode 229 =
ecircumflex Ecircumflex
124 keyCode 230 =
icircumflex Icircumflex
125 keyCode 231 =
ocircumflex Ocircumflex
126 keyCode 232 =
ucircumflex Ucircumflex
127 keyCode 233 =
ntilde Ntilde
128 keyCode 234 =
yacute Yacute
129 keyCode 235 =
oslash Ooblique
130 keyCode 236 =
aring Aring
131 keyCode 237 =
ccedilla Ccedilla
132 keyCode 238 =
thorn THORN
133 keyCode 239 =
eth ETH
134 keyCode 240 =
diaeresis cedilla currency
135 keyCode 241 =
agrave Agrave atilde Atilde
136 keyCode 242 =
egrave Egrave
137 keyCode 243 =
igrave Igrave
138 keyCode 244 =
ograve Ograve otilde Otilde
139 keyCode 245 =
ugrave Ugrave
140 keyCode 246 =
adiaeresis Adiaeresis
141 keyCode 247 =
ediaeresis Ediaeresis
142 keyCode 248 =
idiaeresis Idiaeresis
143 keyCode 249 =
odiaeresis Odiaeresis
144 keyCode 250 =
udiaeresis Udiaeresis
145 keyCode 251 =
ssharp question backslash
146 keyCode 252 =
asciicircum degree
147 keyCode 253 = 3
sterling
148 keyCode 254 =
Mode_switch
149 使用event对象的keyCode属性判断输入的键值
150 eg：
if(event.keyCode==13)alert(“enter!
”);
151 键值对应表
152 A 0X65 U 0X85
153 B 0X66 V 0X86
154 C 0X67 W 0X87
155 D 0X68 X 0X88
156 E 0X69 Y 0X89
157 F 0X70 Z 0X90
158 G 0X71 0 0X48
159 H 0X72 1 0X49
160 I 0X73 2 0X50
161 J 0X74 3 0X51
162 K 0X75 4 0X52
163 L 0X76 5 0X53
164 M 0X77 6 0X54
165 N 0X78 7 0X55
166 O 0X79 8 0X56
167 P 0X80 9 0X57
168 Q 0X81 ESC 0X1B
169 R 0X82 CTRL 0X11
170 S 0X83 SHIFT 0X10
171 T 0X84 ENTER 0XD
172 如果要使用组合键，则可以判断是否同时按下了这几个键，比如ctrl键、shift键以及alt键的组合使用就可以判断是否多按下了ctrl键、shift键以及alt键
感谢网络各路大神提供。
转载于:https://www.cnblogs.com/huzi007/p/3866272.html
