61 lines
1.6 KiB
Markdown
61 lines
1.6 KiB
Markdown
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---
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title: Fibonacci sequence
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id: 597f24c1dda4e70f53c79c81
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challengeType: 5
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videoUrl: ''
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localeTitle: 斐波那契序列
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---
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## Description
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<section id="description"><p>编写一个函数来生成第<big>n <sup>个</sup></big> Fibonacci数。 </p> /// <p>第<big>n <sup>个</sup></big> Fibonacci数由下式给出：/// </p><p> F <sub>n</sub> = F <sub>n-1</sub> + F <sub>n-2</sub> </p> /// <p>该系列的前两个术语是0,1。 </p> /// <p>因此，该系列是：0,1,1,2,3,5,8,13 ...... </p> /// </section>
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## Instructions
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<section id="instructions">
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</section>
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## Tests
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<section id='tests'>
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```yml
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tests:
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- text: <code>fibonacci</code>是一种功能。
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testString: 'assert(typeof fibonacci === "function", "<code>fibonacci</code> is a function.");'
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- text: <code>fibonacci(2)</code>应该返回一个数字。
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testString: 'assert(typeof fibonacci(2) == "number", "<code>fibonacci(2)</code> should return a number.");'
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- text: <code>fibonacci(3)</code>应该返回1.“）
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testString: 'assert.equal(fibonacci(3),1,"<code>fibonacci(3)</code> should return 1.");'
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- text: <code>fibonacci(5)</code>应该返回3.“）
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testString: 'assert.equal(fibonacci(5),3,"<code>fibonacci(5)</code> should return 3.");'
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- text: <code>fibonacci(10)</code>应该返回34.“）
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testString: 'assert.equal(fibonacci(10),34,"<code>fibonacci(10)</code> should return 34.");'
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```
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</section>
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## Challenge Seed
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<section id='challengeSeed'>
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<div id='js-seed'>
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```js
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function fibonacci(n) {
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// Good luck!
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}
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```
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</div>
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</section>
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## Solution
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<section id='solution'>
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```js
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// solution required
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```
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</section>
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