freeCodeCamp/curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/javascript-algorithms-and-data-structures-projects/roman-numeral-converter.chinese.md

---
id: a7f4d8f2483413a6ce226cac
title: Roman Numeral Converter
isRequired: true
challengeType: 5
videoUrl: ''
localeTitle: 罗马数字转换器
---

## Description
<section id="description">将给定数字转换为罗马数字。所有<a href="http://www.mathsisfun.com/roman-numerals.html" target="_blank">罗马数字</a>答案都应以大写字母提供。如果卡住，请记得使用<a href="https://forum.freecodecamp.org/t/how-to-get-help-when-you-are-stuck-coding/19514" target="_blank">Read-Search-Ask</a> 。尝试配对程序。编写自己的代码。 </section>

## Instructions
<section id="instructions">
</section>

## Tests
<section id='tests'>

```yml
tests:
  - text: <code>convertToRoman(2)</code>应该返回“II”。
    testString: assert.deepEqual(convertToRoman(2), "II");
  - text: <code>convertToRoman(3)</code>应该返回“III”。
    testString: assert.deepEqual(convertToRoman(3), "III");
  - text: <code>convertToRoman(4)</code>应该返回“IV”。
    testString: assert.deepEqual(convertToRoman(4), "IV");
  - text: <code>convertToRoman(5)</code>应该返回“V”。
    testString: assert.deepEqual(convertToRoman(5), "V");
  - text: <code>convertToRoman(9)</code>应该返回“IX”。
    testString: assert.deepEqual(convertToRoman(9), "IX");
  - text: <code>convertToRoman(12)</code>应返回“XII”。
    testString: assert.deepEqual(convertToRoman(12), "XII");
  - text: <code>convertToRoman(16)</code>应返回“XVI”。
    testString: assert.deepEqual(convertToRoman(16), "XVI");
  - text: <code>convertToRoman(29)</code>应该返回“XXIX”。
    testString: assert.deepEqual(convertToRoman(29), "XXIX");
  - text: <code>convertToRoman(44)</code>应该返回“XLIV”。
    testString: assert.deepEqual(convertToRoman(44), "XLIV");
  - text: <code>convertToRoman(45)</code>应该返回“XLV”
    testString: assert.deepEqual(convertToRoman(45), "XLV");
  - text: <code>convertToRoman(68)</code>应返回“LXVIII”
    testString: assert.deepEqual(convertToRoman(68), "LXVIII");
  - text: <code>convertToRoman(83)</code>应返回“LXXXIII”
    testString: assert.deepEqual(convertToRoman(83), "LXXXIII");
  - text: <code>convertToRoman(97)</code>应该返回“XCVII”
    testString: assert.deepEqual(convertToRoman(97), "XCVII");
  - text: <code>convertToRoman(99)</code>应返回“XCIX”
    testString: assert.deepEqual(convertToRoman(99), "XCIX");
  - text: <code>convertToRoman(400)</code>应返回“CD”
    testString: assert.deepEqual(convertToRoman(400), "CD");
  - text: <code>convertToRoman(500)</code>应返回“D”
    testString: assert.deepEqual(convertToRoman(500), "D");
  - text: <code>convertToRoman(501)</code>应返回“DI”
    testString: assert.deepEqual(convertToRoman(501), "DI");
  - text: <code>convertToRoman(649)</code>应返回“DCXLIX”
    testString: assert.deepEqual(convertToRoman(649), "DCXLIX");
  - text: <code>convertToRoman(798)</code>应返回“DCCXCVIII”
    testString: assert.deepEqual(convertToRoman(798), "DCCXCVIII");
  - text: <code>convertToRoman(891)</code>应返回“DCCCXCI”
    testString: assert.deepEqual(convertToRoman(891), "DCCCXCI");
  - text: <code>convertToRoman(1000)</code>应该返回“M”
    testString: assert.deepEqual(convertToRoman(1000), "M");
  - text: <code>convertToRoman(1004)</code>应返回“MIV”
    testString: assert.deepEqual(convertToRoman(1004), "MIV");
  - text: <code>convertToRoman(1006)</code>应返回“MVI”
    testString: assert.deepEqual(convertToRoman(1006), "MVI");
  - text: <code>convertToRoman(1023)</code>应返回“MXXIII”
    testString: assert.deepEqual(convertToRoman(1023), "MXXIII");
  - text: <code>convertToRoman(2014)</code>应返回“MMXIV”
    testString: assert.deepEqual(convertToRoman(2014), "MMXIV");
  - text: <code>convertToRoman(3999)</code>应返回“MMMCMXCIX”
    testString: assert.deepEqual(convertToRoman(3999), "MMMCMXCIX");

```

</section>

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

<div id='js-seed'>

```js
function convertToRoman(num) {
 return num;
}

convertToRoman(36);

```

</div>



</section>

## Solution
<section id='solution'>

```js
// solution required
```

/section>