112 lines
2.3 KiB
Markdown
112 lines
2.3 KiB
Markdown
---
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id: bad87fee1348bd9aedd08830
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title: 给表单添加提交按钮
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challengeType: 0
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videoUrl: 'https://scrimba.com/p/pVMPUv/cp2Nkhz'
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forumTopicId: 16627
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dashedName: add-a-submit-button-to-a-form
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---
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# --description--
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让我们来给表单添加一个 `submit`（提交）按钮。 点击提交按钮时，表单中的数据将会被发送到 `action` 属性指定的 URL 上。
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例如：
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`<button type="submit">this button submits the form</button>`
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# --instructions--
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在 `form` 的底部创建一个按钮，按钮的类型为 `submit`，文本为 `Submit`。
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# --hints--
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你的 `form` 里面应该有一个 `button`。
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```js
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assert($('form').children('button').length > 0);
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```
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按钮的 `type` 属性值应为 `submit`。
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```js
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assert($('button').attr('type') === 'submit');
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```
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提交按钮的文本应为 `Submit` 。
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```js
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assert(
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$('button')
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.text()
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.match(/^\s*submit\s*$/gi)
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);
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```
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`button` 元素应有结束标签。
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```js
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assert(
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code.match(/<\/button>/g) &&
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code.match(/<button/g) &&
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code.match(/<\/button>/g).length === code.match(/<button/g).length
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);
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```
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# --seed--
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## --seed-contents--
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```html
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<h2>CatPhotoApp</h2>
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<main>
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<p>Click here to view more <a href="#">cat photos</a>.</p>
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<a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
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<p>Things cats love:</p>
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<ul>
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<li>cat nip</li>
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<li>laser pointers</li>
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<li>lasagna</li>
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</ul>
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<p>Top 3 things cats hate:</p>
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<ol>
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<li>flea treatment</li>
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<li>thunder</li>
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<li>other cats</li>
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</ol>
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<form action="https://freecatphotoapp.com/submit-cat-photo">
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<input type="text" placeholder="cat photo URL">
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</form>
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</main>
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```
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# --solutions--
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```html
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<h2>CatPhotoApp</h2>
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<main>
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<p>Click here to view more <a href="#">cat photos</a>.</p>
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<a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
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<p>Things cats love:</p>
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<ul>
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<li>cat nip</li>
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<li>laser pointers</li>
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<li>lasagna</li>
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</ul>
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<p>Top 3 things cats hate:</p>
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<ol>
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<li>flea treatment</li>
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<li>thunder</li>
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<li>other cats</li>
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</ol>
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<form action="https://freecatphotoapp.com/submit-cat-photo">
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<input type="text" placeholder="cat photo URL">
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<button type="submit">Submit</button>
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</form>
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</main>
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```
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