原文: http://blog.csdn.net/qq_21386275/article/details/67640576 有一些需求,html 页面上的input 框只允许输入数字,  只允许输入小数,等等. 这个时候,就要获取键盘每次按键时候的  keyCode, 来判断是按的哪个键(数字键还是字符键,还是组合键), 然后加入我们的需求对应的处理逻辑. ----------------------------------------------------------------------

window.event.keycode-获取按下的键盘值   event.keycode值大全1 keycode 8 = BackSpace BackSpace 2 keycode 9 = Tab Tab 3 keycode 12 = Clear 4 keycode 13 = Enter 5 keycode 16 = Shift_L 6 keycode 17 = Control_L 7 keycode 18 = Alt_L 8 keycode 19 = Pause 9 keycode 20 =

keycode 8 = BackSpace 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 key

  如何防止回车(enter)键提交表单,其实很简单,就一句话.onkeydown="if(event.keyCode==13)return false;"把这句写在from标签里面就好了. 如果在页面中按Enter键会自动提交的话,可以设置返回值防止自动提交如<input id="q" name="q" type="text" onkeypress="javascript:return gosearch();

  JavaScript 键盘event.keyCode值列表大全   event.keyCode值列表大全,对于需要根据键盘按键触发相应事件的朋友需要. 网上收集的KeyCode值方便大家查找: keycode 8 = BackSpace BackSpace keycode 9 = Tab Tab keycode 12 = Clear keycode 13 = Enter keycode 16 = Shift_L keycode 17 = Control_L keycode 18 = Alt_

keycode 8 = BackSpace 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

window.event.keycode值大全 event.keycode值大全 1 keycode 8 = BackSpace BackSpace 2 keycode 9 = Tab Tab 3 keycode 12 = Clear 4 keycode 13 = Enter 5 keycode 16 = Shift_L 6 keycode 17 = Control_L 7 keycode 18 = Alt_L 8 keycode 19 = Pause 9 keycode 20 = Caps_L

Window.Event.KeyCode=13的含义(转载) 2011-04-16 09:41:18|  分类: html |  标签:keycode  event  realkey  var  document   |字号大中小 订阅     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 (

一.只允许录入整数 1.不允许录入非数字(按下字母键就会提示并清空) function intOnly() { if (!(window.event.keyCode >= 48 && window.event.keyCode <= 57 ||window.event.keyCode==13 //回车符 )) { window.event.keyCode = 0; alert("请输入整数数字!"); } } 2.和intOnly()区别:输入完成焦点离开后判

js获取键盘按下的键值有event.keyCode,event.charCode和event.which 其中: 谷歌浏览器对event.keyCode,event.charCode和event.which都兼容. 火狐浏览器对event.keyCode部分键值有效,如上下左右键(37,38,39,40),enter键(13),PgUp(33),PgDn(34)等部分有效,对数字键,字母键无效. event.which也是部分键值有效,如字母键,数字键,enter键,Backspace键等有效,

javascript判断是否按回车键 <input id="chatMsg" name="chatMsg" type="text" size="90" onkeypress="enterHandler(event);"/> function enterHandler(event) { //获取用户单击键盘的"键值" var keyCode = event.keyCode ?

HTML 用户名:<input type="text" id="UserAccount" onKeyPress="JumpByEnter(UserPwd)" /> 密码:<input name="UserPwd" type="password" onKeyPress="IsEnterKeyPress()"> JavaScript: JumpByEnter(User

HTML 用户名:<input type="text" id="UserAccount" onKeyPress="JumpByEnter(UserPwd)" /> 密码:<input name="UserPwd" type="password" onKeyPress="IsEnterKeyPress()"> JavaScript: JumpByEnter(User

Window.Event.KeyCode=13是enter键处发windows事件,enter键的ASCII是13. <input type="password" name="login_password" id="login_password" class="form-control" placeholder="请输入密码" onkeydown="javascript:if (event.

keycode 8 = BackSpace 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 key

js中event.keyCode用法及keyCode对照表 标签: javascriptJavaScriptJavascriptjavaScript 2012-12-11 15:11 HTML JavaScript: JumpByEnter(UserPwd) 函数功能:输入完用户名按回车,焦点转向密码输入框 IsEnterKeyPress()功能:输入完密码并按回车,则登录 function JumpByEnter(NextElement){      var lKeyCode = (navig

HTML 用户名:<input type="text" id="UserAccount" onKeyPress="JumpByEnter(UserPwd)" /> 密码:<input name="UserPwd" type="password" onKeyPress="IsEnterKeyPress()"> JavaScript: JumpByEnter(User

    //Netscape/Firefox/Opera中不支持 window.event.keyCode,需要用event.which代替//IE用event.keCode方法获取当前被按下的键盘按键值,//而NetScape/FireFox/Opera用的则是event.which 例: <html><body> <script type="text/javascript"> function noNumbers(e){ var keynumva

input的blur事件 $("#input-name").blur(function () { var value = $(this).val(); if (value === '') { return; } if (/^[\u4e00-\u9fa5]{1,3}$/.test(value)) { $(this).removeClass("error-class"); } else { $(this).addClass("error-class"

window.onkeypress=function(e){ var event = e || window.event, //在ff下event会做为参数传进来,ie下会在window下 keyCode = event.which || event.keyCode, //e.which是ff下获取keyCode的方式,ie下使用e.keyCode获取 charCode = event.charCode; }

<body onkeydown=" alert(window.event.keyCode)"> <body onkeydown="if(window.event.keyCode==13){ window.event.keyCode=9}"> keycode 8 = BackSpace BackSpace keycode 9 = Tab Tab keycode 12 = Clear keycode 13 = Enter keycode 16 =