了解keycode-白红宇

了解keycode

阅读量：5277 次

发布时间：2019-06-14

本文共 6750 字，大约阅读时间需要 22 分钟。

就是enter键处发windows事件，enter键的ASCII是13。试着理解下面的一段代码：

XML/HTML代码 <script language=javascript> ie = (document.all)? true:false if (ie){ function ctlent(eventobject){if(event.ctrlKey && window.event.keyCode==13){this.document.form1.submit();}} } </script> <form action="" method=POST name=form1> <textarea cols=95 name=Content rows=12 wrap=virtual οnkeydοwn=ctlent()> Ctrl+Enter提交内容信息 </textarea> <input type=Submit value="Submit" name=Submit> </form> 这段代码的目的就是实现通过Ctrl和Enter键的组合也可以发送form信息。

看到网上有些代码有使用Keycode==10，如 if(event.ctrlKey && (event.keyCode==13 || event.keyCode==10)){……}

但一直搜索不到KEYcode为10是什么键，可能使用的也不会很多。

关于如何得到一个键在Javascript中的Keycode值，可以参考：

<body οnkeypress=alert(event.keyCode)>请按任意键，你将得到该键的键值！

keycode 0 =

keycode 1 =

keycode 2 =

keycode 3 =

keycode 4 =

keycode 5 =

keycode 6 =

keycode 7 =

keycode 8 = BackSpace BackSpace

keycode 9 = Tab Tab

keycode 10 =

keycode 11 =

keycode 12 = Clear

keycode 13 = Enter

keycode 14 =

keycode 15 =

keycode 16 = Shift_L

keycode 17 = Control_L

keycode 18 = Alt_L

keycode 19 = Pause

keycode 20 = Caps_Lock

keycode 21 =

keycode 22 =

keycode 23 =

keycode 24 =

keycode 25 =

keycode 26 =

keycode 27 = Escape Escape

keycode 28 =

keycode 29 =

keycode 30 =

keycode 31 =

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 44 =

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 58 =

keycode 59 =

keycode 60 =

keycode 61 =

keycode 62 =

keycode 63 =

keycode 64 =

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 91 =

keycode 92 =

keycode 93 =

keycode 94 =

keycode 95 =

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 138 =

keycode 139 =

keycode 140 =

keycode 141 =

keycode 142 =

keycode 143 =

keycode 144 =

keycode 145 =

keycode 146 =

keycode 147 =

keycode 148 =

keycode 149 =

keycode 150 =

keycode 151 =

keycode 152 =

keycode 153 =

keycode 154 =

keycode 155 =

keycode 156 =

keycode 157 =

keycode 158 =

keycode 159 =

keycode 160 =

keycode 161 =

keycode 162 =

keycode 163 =

keycode 164 =

keycode 165 =

keycode 166 =

keycode 167 =

keycode 168 =

keycode 169 =

keycode 170 =

keycode 171 =

keycode 172 =

keycode 173 =

keycode 174 =

keycode 175 =

keycode 176 =

keycode 177 =

keycode 178 =

keycode 179 =

keycode 180 =

keycode 181 =

keycode 182 =

keycode 183 =

keycode 184 =

keycode 185 =

keycode 186 =

keycode 187 = acute grave

keycode 188 = comma semicolon

keycode 189 = minus underscore

keycode 190 = period colon

keycode 191 =

keycode 192 = numbersign apostrophe

keycode 193 =

keycode 194 =

keycode 195 =

keycode 196 =

keycode 197 =

keycode 198 =

keycode 199 =

keycode 200 =

keycode 201 =

keycode 202 =

keycode 203 =

keycode 204 =

keycode 205 =

keycode 206 =

keycode 207 =

keycode 208 =

keycode 209 =

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 219 =

keycode 220 = less greater bar

keycode 221 = plus asterisk asciitilde

keycode 222 =

keycode 223 =

keycode 224 =

keycode 225 =

keycode 226 =

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

获取键盘的KeyCode

ns4 = (document.layers) ? true : false;

ie4 = (document.all) ? true : false;

function keyDown(e){

if(ns4){

var nkey=e.which;

var iekey='现在是ns浏览器';

var realkey=String.fromCharCode(e.which);

}

if(ie4){

var iekey=event.keyCode;

var nkey='现在是ie浏览器';

var realkey=String.fromCharCode(event.keyCode);

if(event.keyCode==32){realkey='\' 空格\''}

if(event.keyCode==13){realkey='\' 回车\''}

if(event.keyCode==27){realkey='\' Esc\''}

if(event.keyCode==16){realkey='\' Shift\''}

if(event.keyCode==17){realkey='\' Ctrl\''}

if(event.keyCode==18){realkey='\' Alt\''}

}

alert('ns浏览器中键值:'+nkey+'\n'+'ie浏览器中键值:'+iekey+'\n'+'实际键为'+realkey);

}

document.onkeydown = keyDown;

if(ns4){

document.captureEvents(Event.KEYDOWN);}

</script>

</head>

<body>

//Javascript Document.

<hr>

<h3>请按任意一个键。。。。</h3>

</center>

</body>

</html>

转载于:https://www.cnblogs.com/goodsunny/archive/2012/08/13/2635839.html

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