HTML onfocus 事件属性
定义和用法
onfocus 属性在元素获得焦点时触发。
onfocus 常用于 、 以及 .
提示：onfocus 属性与 onblur 属性相反。
注释：onfocus 属性不适用于以下元素：、、
、、、、、、、 或 。</bdo></p>
<p><strong>实例</strong></p>
<p>当输入字段获得焦点时触发函数。此函数改变输入字段的背景色</p>
<div class="jb51code">
<pre class="brush:js;">
function setStyle(x)
{
document.getElementById(x).style.background="yellow";
}
<p>当输入字段获得焦点时触发函数。此函数改变输入字段的背景色。</p>
First name: <br>
Last name: </pre>
</div>
<p><span style="color: #ff0000"><strong>HTML onblur 事件属性</strong></span></p>
<p><strong>定义和用法</strong></p>
<p>onblur 属性在元素失去焦点时触发。</p>
<p>onblur 常用于表单验证代码（例如用户离开表单字段）。</p>
<p><strong>实例</strong></p>
<p>当用户离开输入字段时对其进行验证：</p>
<div class="jb51code">
<pre class="brush:js;">
function upperCase()
{
var x=document.getElementById("fname").value
document.getElementById("fname").value=x.toUpperCase()
}
<p>请输入您的姓名，然后把焦点移动到字段外：</p>
请输入您的姓名（英文字符）：</pre>
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SyntaxHighlighter.config.strings.expandSource = '+ expand source';
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SyntaxHighlighter.config.strings.brushNotHtmlScript = 'Brush wasn\'t configured for html-script option: ';
SyntaxHighlighter.defaults['pad-line-numbers'] = false;
SyntaxHighlighter.defaults['toolbar'] = false;
SyntaxHighlighter.all();
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if ( typeof( jQuery ) !== 'undefined' ) {
jQuery( function( $ ) {
$( document.body ).on( 'post-load', function() {
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} );
}
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<script>
(function($){ //create closure so we can safely use $ as alias for jQuery
$(document).ready(function(){
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$('#primary-menu').slicknav({
prependTo: '#slick-mobile-menu',
allowParentLinks: true,
label: '导航'
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});
})(jQuery);
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<script src="https://www.2it.club/wp-content/themes/iux/assets/js/sticky-sidebar.min.js"></script>
<script>
(function($){ //create closure so we can safely use $ as alias for jQuery
$(document).ready(function(){
"use strict";
$(window).load(function() {
var stickySidebar = new StickySidebar('#secondary', {
topSpacing: 20,
bottomSpacing: 20,
containerSelector: '.site_container',
innerWrapperSelector: '.sidebar__inner'
});
});
});
})(jQuery);
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<script>
(function($){ //create closure so we can safely use $ as alias for jQuery
$(document).ready(function(){
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if ($(window).width() >= 960) {
var mn = $(".site-header");
var mns = "main-nav-scrolled";
var hdr = $('.top-bar').height();
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mn.addClass(mns);
$('.header-space').css('display','block');
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mn.removeClass(mns);
$('.header-space').css('display','none');
}
});
}
});
})(jQuery);
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