---
id: bad87fee1348bd9aedf08817
title: '用 # 号来创建链接占位符'
challengeType: 0
videoUrl: 'https://scrimba.com/p/pVMPUv/cMdkytL'
forumTopicId: 18230
dashedName: make-dead-links-using-the-hash-symbol
---

# --description--

有时你想为网站添加一个 `a` 元素，但还不确定要将它链接到哪里。这时，你可以使用链接占位符。

链接占位符还有一个应用场景，就是实现在点击 `a` 元素时执行 `JavaScript` 代码。我们会在后面的课程中学到。

# --instructions--

目前，`href` 的属性值是 "`https://freecatphotoapp.com`"。请将 `href` 属性的值替换为`#`，以此来创建链接占位符。

例如: `href="#"`

# --hints--

`a` 的 `href` 属性值应为 "#"。

```js
assert($('a').attr('href') === '#');
```

# --seed--

## --seed-contents--

```html
<h2>CatPhotoApp</h2>
<main>
  <p>Click here to view more <a href="https://freecatphotoapp.com" target="_blank">cat photos</a>.</p>

  <img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">

  <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
  <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
</main>
```

# --solutions--

```html
<h2>CatPhotoApp</h2>
<main>
  <p>Click here to view more <a href="#" target="_blank">cat photos</a>.</p>
  
  <img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back.">
  
  <p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>
  <p>Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
</main>
```