<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        button {
            color: blue;
        }
        
        button[disabled] {
            color: red;
        }
        
        input[type="search"] {
            color: red;
        }
        
        input[class^="icon"] {
            color: blue;
        }
        
        input[class$="icon1"] {
            color: chocolate;
        }
        
        input[class*="abc"] {
            color: cyan;
        }
    </style>
</head>

<body>

    <!-- 属性选择器 -->
    <!-- 
        E[att]             具有att属性的E元素
        E[att^="val"]      具有att属性且值以val开头的E元素
        E[att$="val"]      具有att属性且值以val结尾的E元素
        E[att*="val"]      具有att属性且值有val的E元素 
    -->


    <div>
        <!--     
            button[disabled] {
                color: red;
            }
        -->
        <button>aaa</button>
        <button>aaa</button>
        <button disabled>bbb</button>
        <button disabled>bbb</button>
    </div>


    <div>
        <!-- 
            input[type="search"] {
            color: red;
            } 
        -->
        <input type="text" value="文本框">
        <input type="text" value="文本框">
        <input type="search" value="搜索框">
        <input type="search" value="搜索框">
    </div>

    <div>
        <!-- 
            input[class^="icon"] {
            color: blue;
            }
        -->
        <input class="icon1aa" value="搜索框">
        <input class="icon1aa" value="搜索框">
    </div>

    <div>
        <!-- 
            input[class$="icon1"] {
            color: chocolate;
            }


        -->
        <input class="aaicon1" value="搜索框">
        <input class="aaicon1" value="搜索框">
    </div>

    <div>
        <!-- 
            input[class*="abc"] {
            color: cyan;
            }
        -->
        <input class="testabcdefg" value="搜索框">
        <input class="test1" value="搜索框">
    </div>

</body>

</html>