---
id: a8d97bd4c764e91f9d2bda01
challengeType: 5
forumTopicId: 14273
title: 二进制转化
---

## Description

<section id='description'>
写一个函数，把输入的二进制字符串转换成英文句子。
二进制字符串将以空格分隔。
</section>

## Instructions
<section id='instructions'>

</section>

## Tests
<section id='tests'>

```yml
tests:
  - text: "<code>binaryAgent('01000001 01110010 01100101 01101110 00100111 01110100 00100000 01100010 01101111 01101110 01100110 01101001 01110010 01100101 01110011 00100000 01100110 01110101 01101110 00100001 00111111')</code>应该返回 'Aren&#39;t bonfires fun!?'。"
    testString: assert.deepEqual(binaryAgent('01000001 01110010 01100101 01101110 00100111 01110100 00100000 01100010 01101111 01101110 01100110 01101001 01110010 01100101 01110011 00100000 01100110 01110101 01101110 00100001 00111111'), "Aren't bonfires fun!?");
  - text: "<code>binaryAgent('01001001 00100000 01101100 01101111 01110110 01100101 00100000 01000110 01110010 01100101 01100101 01000011 01101111 01100100 01100101 01000011 01100001 01101101 01110000 00100001')</code>应该返回 'I love FreeCodeCamp!'。"
    testString: assert.deepEqual(binaryAgent('01001001 00100000 01101100 01101111 01110110 01100101 00100000 01000110 01110010 01100101 01100101 01000011 01101111 01100100 01100101 01000011 01100001 01101101 01110000 00100001'), "I love FreeCodeCamp!");

```

</section>

## Challenge Seed
<section id='challengeSeed'>

<div id='js-seed'>

```js
function binaryAgent(str) {
  return str;
}

binaryAgent("01000001 01110010 01100101 01101110 00100111 01110100 00100000 01100010 01101111 01101110 01100110 01101001 01110010 01100101 01110011 00100000 01100110 01110101 01101110 00100001 00111111");
```

</div>



</section>

## Solution
<section id='solution'>


```js
function binaryAgent(str) {
  return str.split(' ').map(function(s) { return parseInt(s, 2); }).map(function(b) { return String.fromCharCode(b);}).join('');
}
```

</section>