jQuery Selectors(选择器)的使用(九、表单对象属性篇)

本系列文章分为：基本篇、层次篇、简单篇、内容篇、可见性篇、属性篇、子元素篇、表单篇、表单对象属性篇共9篇文章。
本篇讲解：:enabled,:disabled,:checked,:selected的用法。
您对本系列文章有任何建议或意见请发送到邮箱：sjzlgt@qq.com
由于是第一次写技术性系列文章，难免会出错或代码BUG，欢迎指出，在此谢过！
运行后，需要刷新下，加载下jquery
</p><p><b><br /><b><br /><title>jQuery-Selectors-9</title> </p><p>.div<br />{<br /> width:95%;<br /> margin-left:15px;<br /> margin-top:15px;<br /> margin-right:15px;<br /> padding-left:5px;<br /> padding-top:5px;<br /> padding-bottom:5px;<br /> background-color:#ccc;<br /> border:#999 1px solid;<br /> line-height:30px;<br /> font-size:13px;<br /> font-family:微软雅黑;<br />}<br />.blue{color:Blue;}<br />.green{color:Green;}<br />.button{border:green 1px solid;width:100px;}<br />.xiaobiao{ font-weight:bold;}<br />.red_test{background-color:red; color:White; width:300px; height:30px;}<br />.li_test{border:#000 1px solid;} </p><p></b> </p><p>jQuery-Selectors(选择器)的使用(九、表单对象属性篇)<br />本系列文章主要讲述jQuery框架的选择器(Selectors)使用方法，我将以实例方式进行讲述，以简单，全面为基础，不会涉及很深，我的学习方法：先入门，后进阶！</p><p>本系列文章分为：基本篇、层次篇、简单篇、内容篇、可见性篇、属性篇、子元素篇、表单篇、表单对象属性篇共9篇文章。</p><p>本篇讲解：:enabled,:disabled,:checked,:selected的用法。</p><p>您对本系列文章有任何建议或意见请发送到邮箱：sjzlgt@qq.com </p><p>由于是第一次写技术性系列文章，难免会出错或代码BUG，欢迎指出，在此谢过！</p><p>您可以到jQuery官网来学习更多的有关jQuery知识。</p><p><strong>版权所有：code-cat 博客:http://www.cnblogs.com/bynet 转载请保留原作者、出处和版权信息！</strong> </p><p>在IE6、IE7、火狐下测试过了，效果都能实现。 </p><p>1. :enabled用法</p><p>定义：匹配所有可用元素</p><p>返回值：Array<Element></p><p>实例：将ID为”div_a1″的DIV中所有可用的input元素的背景色改为红色</p><p>代码： $(“#div_a1 input:enabled”).css(“background-color”,”red”); //点击按钮一将执行这句代码 </p><p>DIV ID=”div_a1″</p><p>span ID=”span_a1″</p><p><textarea rows="2" cols="10">texteara </p><p>select </p><p>2. :disabled用法</p><p>定义：匹配所有不可用元素</p><p>返回值：Array<Element></p><p>实例：将ID为”div_b1″的DIV中所有不可用的input元素的背景色改为红色</p><p>代码： $(“#div_b1 input:disabled”).css(“background-color”,”red”); //点击按钮二将执行这句代码 </p><p>DIV ID=”div_b1″ <div class="pagination"><a title="Page"> <b>1</b>/<b>2</b> </a>   <b>1</b> <a href="/cos/2020/0522/511405_2.shtml">2</a> <a href="/cos/2020/0522/511405_2.shtml">下一页</a> <a href="/cos/2020/0522/511405_2.shtml">尾页</a></div> </div> </div> </div> <div class="postMore"> <div 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