chore(learn): Applied MDX format to Chinese curriculum files (#40462)

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Randell Dawson
2020-12-16 00:37:30 -07:00
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---
id: 59c3ec9f15068017c96eb8a3
title: Farey序列
challengeType: 5
videoUrl: ''
title: Farey序列
---
## Description
<section id="description"><p>编写一个返回n阶Farey序列的函数。该函数应该有一个参数n。它应该将序列作为数组返回。阅读以下内容了解更多详情 </p><p>阶数n的<a href="https://en.wikipedia.org/wiki/Farey sequence" title="wpFarey序列">Farey序列</a> F <sub>n</sub>是在0和1之间的完全减少的分数的序列当在最低阶段时具有小于或等于n的分母按照增大的大小排列。 </p><p> Farey序列有时被错误地称为Farey系列。 </p><p>每个Farey序列 </p><p> :: *以值0开头由分数$ \ frac {0} {1} $表示</p><p> :: *以值1结尾由$ \ frac {1} {1} $分数表示。 </p><p>订单1到5的Farey序列是 </p><p> $ {\ bf \ it {F}} _ 1 = \ frac {0} {1}\ frac {1} {1} $ </p><p></p><p> $ {\ bf \ it {F}} _ 2 = \ frac {0} {1}\ frac {1} {2}\ frac {1} {1} $ </p><p></p><p> $ {\ bf \ it {F}} _ 3 = \ frac {0} {1}\ frac {1} {3}\ frac {1} {2}\ frac {2} {3}\ frac {1} {1} $ </p><p></p><p> $ {\ bf \ it {F}} _ 4 = \ frac {0} {1}\ frac {1} {4}\ frac {1} {3}\ frac {1} {2}\ frac {2} {3}\ frac {3} {4}\ frac {1} {1} $ </p><p></p><p> $ {\ bf \ it {F}} _ 5 = \ frac {0} {1}\ frac {1} {5}\ frac {1} {4}\ frac {1} {3}\ frac {2} {5}\ frac {1} {2}\ frac {3} {5}\ frac {2} {3}\ frac {3} {4}\ frac {4} {5 }\ frac {1} {1} $ </p></section>
# --description--
## Instructions
<section id="instructions">
</section>
<p>编写一个返回n阶Farey序列的函数。该函数应该有一个参数n。它应该将序列作为数组返回。阅读以下内容了解更多详情 </p><p>阶数n的<a href='https://en.wikipedia.org/wiki/Farey sequence' title='wpFarey序列'>Farey序列</a> F <sub>n</sub>是在0和1之间的完全减少的分数的序列当在最低阶段时具有小于或等于n的分母按照增大的大小排列。 </p><p> Farey序列有时被错误地称为Farey系列。 </p><p>每个Farey序列 </p><p> :: *以值0开头由分数$ \ frac {0} {1} $表示</p><p> :: *以值1结尾由$ \ frac {1} {1} $分数表示。 </p><p>订单1到5的Farey序列是 </p><p> $ {\ bf \ it {F}} _ 1 = \ frac {0} {1}\ frac {1} {1} $ </p><p></p><p> $ {\ bf \ it {F}} _ 2 = \ frac {0} {1}\ frac {1} {2}\ frac {1} {1} $ </p><p></p><p> $ {\ bf \ it {F}} _ 3 = \ frac {0} {1}\ frac {1} {3}\ frac {1} {2}\ frac {2} {3}\ frac {1} {1} $ </p><p></p><p> $ {\ bf \ it {F}} _ 4 = \ frac {0} {1}\ frac {1} {4}\ frac {1} {3}\ frac {1} {2}\ frac {2} {3}\ frac {3} {4}\ frac {1} {1} $ </p><p></p><p> $ {\ bf \ it {F}} _ 5 = \ frac {0} {1}\ frac {1} {5}\ frac {1} {4}\ frac {1} {3}\ frac {2} {5}\ frac {1} {2}\ frac {3} {5}\ frac {2} {3}\ frac {3} {4}\ frac {4} {5 }\ frac {1} {1} $ </p>
## Tests
<section id='tests'>
# --hints--
```yml
tests:
- text: <code>farey</code>是一种功能。
testString: assert(typeof farey === 'function');
- text: <code>farey(3)</code>应该返回一个数组
testString: assert(Array.isArray(farey(3)));
- text: <code>farey(3)</code>应该返回<code>["1/3","1/2","2/3"]</code>
testString: assert.deepEqual(farey(3), ["1/3","1/2","2/3"]);
- text: <code>farey(4)</code>应该返回<code>["1/4","1/3","1/2","2/4","2/3","3/4"]</code>
testString: assert.deepEqual(farey(4), ["1/4","1/3","1/2","2/4","2/3","3/4"]);
- text: <code>farey(5)</code>应返回<code>["1/5","1/4","1/3","2/5","1/2","2/4","3/5","2/3","3/4","4/5"]</code>
testString: assert.deepEqual(farey(5), ["1/5","1/4","1/3","2/5","1/2","2/4","3/5","2/3","3/4","4/5"]);
```
</section>
## Challenge Seed
<section id='challengeSeed'>
<div id='js-seed'>
`farey`是一种功能。
```js
function farey (n) {
// Good luck!
}
assert(typeof farey === 'function');
```
</div>
</section>
## Solution
<section id='solution'>
`farey(3)`应该返回一个数组
```js
// solution required
assert(Array.isArray(farey(3)));
```
/section>
`farey(3)`应该返回`["1/3","1/2","2/3"]`
```js
assert.deepEqual(farey(3), ['1/3', '1/2', '2/3']);
```
`farey(4)`应该返回`["1/4","1/3","1/2","2/4","2/3","3/4"]`
```js
assert.deepEqual(farey(4), ['1/4', '1/3', '1/2', '2/4', '2/3', '3/4']);
```
`farey(5)`应返回`["1/5","1/4","1/3","2/5","1/2","2/4","3/5","2/3","3/4","4/5"]`
```js
assert.deepEqual(farey(5), [
'1/5',
'1/4',
'1/3',
'2/5',
'1/2',
'2/4',
'3/5',
'2/3',
'3/4',
'4/5'
]);
```
# --solutions--