vscode——HTML基本标签A标签超级链接

作者：2023面试高手 | 2024-03-09 20:54:24

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什么是超级链接：
1通过超级连接建立链接的关系——>从一个页面跳转另一个页面——>a标签是成对出现的——<a></a>有开始有结束——>a标签不加属性：
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>超级链接</title>
</head>
<body>
    <a>超级链接</a>
</body>
</html>
只显示“超级链接”


2.为了实现超链接功能：
1.href属性——>填入网页地址或文件地址；
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>超级链接</title>
</head>
<body>
    <a href="https://www.mi.com/seckill/">超级链接</a>
</body>
</html>
2.点击超级链接直接在当前页面,跳转到"指定的网页"——>在新的标签打开"指定的网页"——>
target属性——>后面什么都不写页面默认替换——>target="_blank"——>在网页里新开一个标签：
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>超级链接</title>
</head>
<body>
    <a href="https://www.mi.com/seckill/" target="_blank">超级链接</a>
</body>
</html>
3.在<a>可以放文字,还可以放图片</a>：
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>超级链接</title>
</head>
<body>
    <a href="https://www.mi.com/seckill/" target="_blank">
        <img src="bh1.png" alt="">
    </a>
</body>
</html>


3.a标签还有很重要"书签标记"也叫"锚点"：
1.在html页面加行快捷写法——>br{$}*100——>br{$}*100+回车键：
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>超级链接</title>
</head>
<body>
    <a href="https://www.mi.com/seckill/" target="_blank">
        <img src="bh1.png" alt=""> 
    </a>
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</body>
</html>


2.怎么加锚点——> <a href="#后面加行数"></a> ——>是通过"#"和"id"对应起——>就是重a链接调到"#后面加行数"里面去
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>超级链接</title>
</head>
<body>
    <a href="https://www.mi.com/seckill/" target="_blank">
        <img src="bh1.png" alt="">   
    </a>
    <a href="#end">最下面</a>
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    <br id="mid37">37
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    <br id="end">100
    <a href="#mid37">mid37</a>
</body>
</html>
3.如果只写#——>例如：<a href="#">最顶上</a>

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