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jQuery form element selector example explanation

小云云Original: 2018-02-08 10:35:151054browse

This article mainly introduces the relevant information of jQuery selector and form element selector in detail. It has certain reference value. Interested friends can refer to it. I hope it can help you.

<!DOCTYPE html>
<html>
<head>
  <meta http-equiv="Content-type" content="text/html; charset=utf-8" />
  <title></title>
  <link rel="stylesheet" href="imooc.css" rel="external nofollow" type="text/css">
  <style> 
    input{
      display: block;
      margin: 10px;
      padding:10px;
    }
  </style>
  <script src="http://libs.baidu.com/jquery/1.9.1/jquery.js"></script>
</head>

<body>
  <h2>子元素筛选选择器</h2>
  <h3>input、text、password、radio、checkbox</h3>
  <h3>submit、image、reset、button、file</h3>
  <p class="left first-p">
    <form>
      <input type="text" value="text类型"/>
      <input type="password" value="password"/>
      <input type="radio"/> 
      <input type="checkbox"/>
      <input type="submit" />
      <input type="image" />
      <input type="reset" />
      <input type="button" value="Button" />
      <input type="file" />
    </form>
  </p>

  <script type="text/javascript">
    //查找所有 input, textarea, select 和 button 元素
    //:input 选择器基本上选择所有表单控件
    $(":input").css("border", "1px groove red"); 
  </script>

  <script type="text/javascript">
    //匹配所有input元素中类型为text的input元素
    $(":text").css("background", "#A2CD5A");
  </script>

  <script type="text/javascript">
    //匹配所有input元素中类型为password的input元素
    $(":password").css("background", "yellow");
  </script>

  <script type="text/javascript">
    //匹配所有input元素中的单选按钮,并选中
    $(":radio").attr(&#39;checked&#39;,&#39;true&#39;);
  </script>

  <script type="text/javascript">
    //匹配所有input元素中的复选按钮,并选中
    $(":checkbox").attr(&#39;checked&#39;,&#39;true&#39;); 
  </script>

  <script type="text/javascript">
    //匹配所有input元素中的提交的按钮,修改背景颜色
    $(":submit").css("background", "#C6E2FF");
  </script>

  <script type="text/javascript">
    //匹配所有input元素中的图像类型的元素,修改背景颜色
    $(":image").css("background", "#F4A460");
  </script>

  <script type="text/javascript">
    //匹配所有input元素中类型为按钮的元素
    $(":button").css("background", "red");
  </script>

  <script type="text/javascript">
    //匹配所有input元素中类型为file的元素
    $(":file").css("background", "#CD1076");
  </script>

</body>

</html>

jQuery form element selector example explanation

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