freeCodeCamp/curriculum/challenges/chinese/02-javascript-algorithms-and-data-structures/regular-expressions/match-single-character-with-multiple-possibilities.chinese.md
Kristofer Koishigawa b3213fc892 fix(i18n): chinese test suite (#38220)
* fix: Chinese test suite

Add localeTiltes, descriptions, and adjust test text and testStrings to get the automated test suite working.

* fix: ran script, updated testStrings and solutions
2020-03-03 18:49:47 +05:30

60 lines
2.8 KiB
Markdown
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

---
id: 587d7db5367417b2b2512b95
title: Match Single Character with Multiple Possibilities
challengeType: 1
videoUrl: ''
localeTitle: 将单个角色与多种可能性相匹配
---
## Description
<section id="description">您学习了如何匹配文字模式( <code>/literal/</code> )和通配符( <code>/./</code> )。这些是正则表达式的极端,其中一个找到完全匹配,另一个匹配一切。有两个极端之间可以平衡的选项。您可以使用<code>character classes</code>搜索具有一定灵活性的文字模式。字符类允许您通过将它们放在方括号( <code>[</code><code>]</code> )括号内来定义要匹配的一组字符。例如,您想匹配<code>&quot;bag&quot;</code> <code>&quot;big&quot;</code><code>&quot;bug&quot;</code>但不匹配<code>&quot;bog&quot;</code> 。您可以创建regex <code>/b[aiu]g/</code>来执行此操作。 <code>[aiu]</code>是仅匹配字符<code>&quot;a&quot;</code> <code>&quot;i&quot;</code><code>&quot;u&quot;</code>的字符类。 <blockquote>让bigStr =“大”; <br>让bagStr =“bag”; <br>让bugStr =“bug”; <br>让bogStr =“bog”; <br>让bgRegex = / b [aiu] g /; <br> bigStr.matchbgRegex; //返回[“大”] <br> bagStr.matchbgRegex; //返回[“bag”] <br> bugStr.matchbgRegex; //返回[“bug”] <br> bogStr.matchbgRegex; //返回null </blockquote></section>
## Instructions
<section id="instructions">在正则表达式<code>vowelRegex</code>使用带元音( <code>a</code> <code>e</code> <code>i</code> <code>o</code> <code>u</code> )的字符类来查找字符串<code>quoteSample</code>中的所有元音。 <strong>注意</strong> <br>确保匹配大写和小写元音。 </section>
## Tests
<section id='tests'>
```yml
tests:
- text: 你应该找到所有25个元音。
testString: assert(result.length == 25);
- text: 你的正则表达式<code>vowelRegex</code>应该使用一个字符类。
testString: assert(/\[.*\]/.test(vowelRegex.source));
- text: 你的正则表达式<code>vowelRegex</code>应该使用全局标志。
testString: assert(vowelRegex.flags.match(/g/).length == 1);
- text: 你的正则表达式<code>vowelRegex</code>应该使用不区分大小写的标志。
testString: assert(vowelRegex.flags.match(/i/).length == 1);
- text: 你的正则表达式不应该与任何辅音匹配。
testString: assert(!/[b-df-hj-np-tv-z]/gi.test(result.join()));
```
</section>
## Challenge Seed
<section id='challengeSeed'>
<div id='js-seed'>
```js
let quoteSample = "Beware of bugs in the above code; I have only proved it correct, not tried it.";
let vowelRegex = /change/; // Change this line
let result = vowelRegex; // Change this line
```
</div>
</section>
## Solution
<section id='solution'>
```js
// solution required
```
</section>