JavaScript event.keyCode

admin發表於2018-11-02
JavaScript

此屬性可以返回被敲擊的按鍵生成的Unicode字元碼。

對於keydown和keyup事件，它指定了被敲擊的鍵的虛擬鍵盤碼。

虛擬鍵盤碼可能和使用的鍵盤的佈局相關。

語法結構: 

[JavaScript] 純文字檢視 複製程式碼
event.keyCode

瀏覽器支援:

（1）.IE瀏覽器支援此屬性。

（2）.edge瀏覽器支援此屬性。

（3）.火狐瀏覽器支援此屬性。

（4）.Opera瀏覽器支援此屬性。

（5）.谷歌瀏覽器支援此屬性。

（6）.safria瀏覽器支援此屬性。

例項程式碼: 

[HTML] 純文字檢視 複製程式碼執行程式碼
<!DOCTYPE html>  
<html>  
<head>  
<meta charset=" utf-8">  
<meta name="author" content="http://www.softwhy.com/" />  
<title>螞蟻部落</title> 
<script type="text/javascript"> 
window.onload=function(){ 
  var otxt = document.getElementById("txt");
  var odiv = document.getElementById("antzone")
  otxt.onkeydown = function (ev) {
    odiv.innerHTML = ev.keyCode;
  } 
} 
</script> 
</head> 
<body> 
<input type="text" id="txt" name="txt" /> 
<div id="antzone"></div>
</body> 
</html>

在文字框中點選按鈕會返回對應按鍵的keyCode值。

js的鍵盤按鍵keyCode屬性值對應表：

keycode     8 = BackSpace

keycode     9 = Tab Tab

keycode    12 = Clear

keycode    13 = Enter

keycode    16 = Shift_L

keycode    17 = Control_L

keycode    18 = Alt_L

keycode    19 = Pause

keycode    20 = Caps_Lock

keycode    27 = Escape Escape

keycode    32 = space space

keycode    33 = Prior

keycode    34 = Next

keycode    35 = End

keycode    36 = Home

keycode    37 = Left

keycode    38 = Up

keycode    39 = Right

keycode    40 = Down

keycode    41 = Select

keycode    42 = Print

keycode    43 = Execute

keycode    45 = Insert

keycode    46 = Delete

keycode    47 = Help

keycode    48 = 0 equal braceright

keycode    49 = 1 exclam onesuperior

keycode    50 = 2 quotedbl twosuperior

keycode    51 = 3 section threesuperior

keycode    52 = 4 dollar

keycode    53 = 5 percent

keycode    54 = 6 ampersand

keycode    55 = 7 slash braceleft

keycode    56 = 8 parenleft bracketleft

keycode    57 = 9 parenright bracketright

keycode    65 = a A

keycode    66 = b B

keycode    67 = c C

keycode    68 = d D

keycode    69 = e E EuroSign

keycode    70 = f F

keycode    71 = g G

keycode    72 = h H

keycode    73 = i I

keycode    74 = j J

keycode    75 = k K

keycode    76 = l L

keycode    77 = m M mu

keycode    78 = n N

keycode    79 = o O

keycode    80 = p P

keycode    81 = q Q at

keycode    82 = r R

keycode    83 = s S

keycode    84 = t T

keycode    85 = u U

keycode    86 = v V

keycode    87 = w W

keycode    88 = x X

keycode    89 = y Y

keycode    90 = z Z

keycode    96 = KP_0 KP_0

keycode    97 = KP_1 KP_1

keycode    98 = KP_2 KP_2

keycode    99 = KP_3 KP_3

keycode 100 = KP_4 KP_4

keycode 101 = KP_5 KP_5

keycode 102 = KP_6 KP_6

keycode 103 = KP_7 KP_7

keycode 104 = KP_8 KP_8

keycode 105 = KP_9 KP_9

keycode 106 = KP_Multiply KP_Multiply

keycode 107 = KP_Add KP_Add

keycode 108 = KP_Separator KP_Separator

keycode 109 = KP_Subtract KP_Subtract

keycode 110 = KP_Decimal KP_Decimal

keycode 111 = KP_Divide KP_Divide

keycode 112 = F1

keycode 113 = F2

keycode 114 = F3

keycode 115 = F4

keycode 116 = F5

keycode 117 = F6

keycode 118 = F7

keycode 119 = F8

keycode 120 = F9

keycode 121 = F10

keycode 122 = F11

keycode 123 = F12

keycode 124 = F13

keycode 125 = F14

keycode 126 = F15

keycode 127 = F16

keycode 128 = F17

keycode 129 = F18

keycode 130 = F19

keycode 131 = F20

keycode 132 = F21

keycode 133 = F22

keycode 134 = F23

keycode 135 = F24

keycode 136 = Num_Lock

keycode 137 = Scroll_Lock

keycode 187 = acute grave

keycode 188 = comma semicolon

keycode 189 = minus underscore

keycode 190 = period colon

keycode 192 = numbersign apostrophe

keycode 210 = plusminus hyphen macron

keycode 211 =

keycode 212 = copyright registered

keycode 213 = guillemotleft guillemotright

keycode 214 = masculine ordfeminine

keycode 215 = ae AE

keycode 216 = cent yen

keycode 217 = questiondown exclamdown

keycode 218 = onequarter onehalf threequarters

keycode 220 = less greater bar

keycode 221 = plus asterisk asciitilde

keycode 227 = multiply division

keycode 228 = acircumflex Acircumflex

keycode 229 = ecircumflex Ecircumflex

keycode 230 = icircumflex Icircumflex

keycode 231 = ocircumflex Ocircumflex

keycode 232 = ucircumflex Ucircumflex

keycode 233 = ntilde Ntilde

keycode 234 = yacute Yacute

keycode 235 = oslash Ooblique

keycode 236 = aring Aring

keycode 237 = ccedilla Ccedilla

keycode 238 = thorn THORN

keycode 239 = eth ETH

keycode 240 = diaeresis cedilla currency

keycode 241 = agrave Agrave atilde Atilde

keycode 242 = egrave Egrave

keycode 243 = igrave Igrave

keycode 244 = ograve Ograve otilde Otilde

keycode 245 = ugrave Ugrave

keycode 246 = adiaeresis Adiaeresis

keycode 247 = ediaeresis Ediaeresis

keycode 248 = idiaeresis Idiaeresis

keycode 249 = odiaeresis Odiaeresis

keycode 250 = udiaeresis Udiaeresis

keycode 251 = ssharp question backslash

keycode 252 = asciicircum degree

keycode 253 = 3 sterling

keycode 254 = Mode_switch


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