js 键盘事件

键盘事件

• onkeydown 会在键盘按下时触发
• onkeypress 会在键盘按下并抬起时触发
• onkeyup 会在键盘抬起时触发

document.onkeydown = function (event) {
        var e = event || window.event || arguments.callee.caller.arguments[0];
        alert(e.keyCode);
    };

keycode积累

keycode	keyboard
8	Backspace
9	Tab
13	Enter
16	shift
17	ctrl
18	Alt
20	CspdLk
27	Esc
32	Space
33	PgUp
34	PgDn
35	End
36	Home
37	left
38	up
39	right
40	down
45	Insert
46	Delete
48	0
49	1
50	2
51	3
52	4
53	5
54	6
55	7
56	8
57	9
65	a
66	b
67	c
68	d
69	e
70	f
71	g
72	h
73	i
74	j
75	k
76	l
77	m
78	n
79	o
80	p
81	q
82	r
83	s
84	t
85	u
86	v
87	w
88	x
89	y
90	z
91	win