61 lines
		
	
	
		
			2.8 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
			
		
		
	
	
			61 lines
		
	
	
		
			2.8 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
| ---
 | ||
| id: bad87fee1348bd9aedf08812
 | ||
| title: Add Images to Your Website
 | ||
| challengeType: 0
 | ||
| guideUrl: 'https://chinese.freecodecamp.org/guide/certificates/add-images-to-your-website'
 | ||
| videoUrl: ''
 | ||
| localeTitle: 添加图片到您的网站
 | ||
| ---
 | ||
| 
 | ||
| ## Description
 | ||
| <section id="description">您可以使用<code>img</code>元素将图像添加到网站,并使用<code>src</code>属性指向特定图像的URL。这方面的一个例子是: <code><img src="https://www.your-image-source.com/your-image.jpg"></code>请注意, <code>img</code>元素是自动关闭的。所有<code>img</code>元素都<strong>必须</strong>具有<code>alt</code>属性。 <code>alt</code>属性中的文本用于屏幕阅读器以提高可访问性,并在图像无法加载时显示。注意:如果图像纯粹是装饰性的,则使用空的<code>alt</code>属性是最佳做法。理想情况下,除非需要,否则<code>alt</code>属性不应包含特殊字符。让我们在上面的<code>img</code>示例中添加一个<code>alt</code>属性: <code><img src="https://www.your-image-source.com/your-image.jpg" alt="Author standing on a beach with two thumbs up."></code> </section>
 | ||
| 
 | ||
| ## Instructions
 | ||
| <section id="instructions">让我们尝试将图像添加到我们的网站:在<code>h2</code>元素之前插入<code>img</code>标记。现在设置<code>src</code>属性,使其指向此URL: <code>https://bit.ly/fcc-relaxing-cat</code> : <code>https://bit.ly/fcc-relaxing-cat</code>最后不要忘记为您的图像添加<code>alt</code>文字。 </section>
 | ||
| 
 | ||
| ## Tests
 | ||
| <section id='tests'>
 | ||
| 
 | ||
| ```yml
 | ||
| tests:
 | ||
|   - text: 您的页面应该有一个图像元素。
 | ||
|     testString: 'assert($("img").length > 0, "Your page should have an image element.");'
 | ||
|   - text: 您的图像应具有指向小猫图像的<code>src</code>属性。
 | ||
|     testString: 'assert(new RegExp("\/\/bit.ly\/fcc-relaxing-cat|\/\/s3.amazonaws.com\/freecodecamp\/relaxing-cat.jpg", "gi").test($("img").attr("src")), "Your image should have a <code>src</code> attribute that points to the kitten image.");'
 | ||
|   - text: 您的图片元素<strong>必须</strong>具有<code>alt</code>属性。
 | ||
|     testString: 'assert(code.match(/alt\s*?=\s*?(\"|\").*(\"|\")/), "Your image element <strong>must</strong> have an <code>alt</code> attribute.");'
 | ||
| 
 | ||
| ```
 | ||
| 
 | ||
| </section>
 | ||
| 
 | ||
| ## Challenge Seed
 | ||
| <section id='challengeSeed'>
 | ||
| 
 | ||
| <div id='html-seed'>
 | ||
| 
 | ||
| ```html
 | ||
| <h2>CatPhotoApp</h2>
 | ||
| <main>
 | ||
| 
 | ||
| 
 | ||
|   <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>
 | ||
| 
 | ||
| ```
 | ||
| 
 | ||
| </div>
 | ||
| 
 | ||
| 
 | ||
| 
 | ||
| </section>
 | ||
| 
 | ||
| ## Solution
 | ||
| <section id='solution'>
 | ||
| 
 | ||
| ```js
 | ||
| // solution required
 | ||
| ```
 | ||
| </section>
 |