每次写“JS监测某个键的动作”的功能时总要百度下它的键值，写的次数多了就觉得挺麻烦的，这里弄个汇总，汇总一下常用键盘结构各个键的键值。
| 序号 |
键值 |
对应于键盘键 |
说明 |
| 功能键 |
|||
| 1 |
27 |
Esc |
退出键 |
| 2 |
8 |
BackSpace |
退格键 |
| 3 |
9 |
Tab |
Tab键，制表位键 |
| 4 |
20 |
Caps Lock |
大写锁定键 |
| 5 |
13 |
Enter |
回车键 |
| 6 |
16 |
Shift |
shift |
| 7 |
17 |
Ctrl |
Ctrl键 |
| 8 |
18 |
Alt |
Alt键 |
| 9 |
91 |
win |
win键 |
| 10 |
93 |
win键旁边鼠标选中一个文件的键 |
功能：鼠标右键 |
| 11 |
32 |
space |
空格键 |
| 12 |
145 |
Scroll Lock |
屏幕锁定键 |
| 13 |
19 |
Pause Break |
中断暂停键，按这个键可以暂停中止某些程序执行 |
| 14 |
46 |
Delete |
删除键 |
| 15 |
36 |
Home |
|
| 16 |
35 |
End |
|
| 17 |
45 |
insert |
|
| 18 |
33 |
Page Up |
上一页键 |
| 19 |
34 |
Page Down |
下一页键 |
| 光标键 |
|||
| 1 |
37 |
Left |
左光标键 |
| 2 |
38 |
Up |
上光标键 |
| 3 |
39 |
Right |
右光标键 |
| 4 |
40 |
Down |
下光标键 |
| 主键盘的数字键 |
|||
| 1 |
48 |
0 |
0 |
| 2 |
49 |
1 |
1 |
| 3 |
50 |
2 |
2 |
| 4 |
51 |
3 |
3 |
| 5 |
52 |
4 |
4 |
| 6 |
53 |
5 |
5 |
| 7 |
54 |
6 |
6 |
| 8 |
55 |
7 |
7 |
| 9 |
56 |
8 |
8 |
| 10 |
57 |
9 |
9 |
| 小键盘 |
|||
| 1 |
96 |
0 |
|
| 2 |
97 |
1 |
|
| 3 |
98 |
2 |
|
| 4 |
99 |
3 |
|
| 5 |
100 |
4 |
|
| 6 |
101 |
5 |
|
| 7 |
102 |
6 |
|
| 8 |
103 |
7 |
|
| 9 |
104 |
8 |
|
| 10 |
105 |
9 |
|
| 11 |
107 |
+ |
加号 |
| 12 |
109 |
- |
减号 |
| 13 |
106 |
* |
乘号 |
| 14 |
111 |
/ |
除号 |
| 15 |
144 |
Num Lock |
小键盘锁定键 |
| 16 |
13 |
Enter |
回车键 |
| 17 |
110 |
. |
小数点键 |
| 字母键 |
|||
| 1 |
65 |
A |
|
| 2 |
66 |
B |
|
| 3 |
67 |
C |
|
| 4 |
68 |
D |
|
| 5 |
69 |
E |
|
| 6 |
70 |
F |
|
| 7 |
71 |
G |
|
| 8 |
72 |
H |
|
| 9 |
73 |
I |
|
| 10 |
74 |
J |
|
| 11 |
75 |
K |
|
| 12 |
76 |
L |
|
| 13 |
77 |
M |
|
| 14 |
78 |
N |
|
| 15 |
79 |
O |
|
| 16 |
80 |
P |
|
| 17 |
81 |
Q |
|
| 18 |
82 |
R |
|
| 19 |
83 |
S |
|
| 20 |
84 |
T |
|
| 21 |
85 |
U |
|
| 22 |
86 |
V |
|
| 23 |
87 |
W |
|
| 24 |
88 |
X |
|
| 25 |
89 |
Y |
|
| 26 |
90 |
Z |
|
| 帮助键 |
|||
| 1 |
112 |
F1 |
|
| 2 |
113 |
F2 |
|
| 3 |
114 |
F3 |
|
| 4 |
115 |
F4 |
|
| 5 |
116 |
F5 |
|
| 6 |
117 |
F6 |
|
| 7 |
118 |
F7 |
|
| 8 |
119 |
F8 |
|
| 9 |
120 |
F9 |
|
| 10 |
121 |
F10 |
|
| 11 |
122 |
F11 |
|
| 12 |
123 |
F12 |
|
| 标点符号键 |
|||
| 1 |
189 |
- _ |
破折号/下划线键 |
| 2 |
187 |
= + |
等号/加号键 |
| 3 |
192 |
` ~ |
|
| 4 |
219 |
[ { |
左大括号/左中括号键 |
| 5 |
221 |
] } |
右大括号/右中括号键 |
| 6 |
220 |
\ | |
反斜杠/竖线键 |
| 7 |
186 |
; : |
分号/冒号键 |
| 8 |
222 |
' " |
单引号/双引号键 |
| 9 |
188 |
, < |
逗号/小于号键 |
| 10 |
190 |
. > |
句号/大于号键 |
| 11 |
191 |
/ ? |
斜杠/问号键 |
更多键盘键值请参考：http://www.cnblogs.com/huzi007/p/3866272.html
JS获取键盘键值的测试代码：
document.onkeydown=function(event){
var e = event || window.event || arguments.callee.caller.arguments[0];
alert(e.keyCode);
};