81 lines
3.4 KiB
Markdown
81 lines
3.4 KiB
Markdown
---
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id: 56533eb9ac21ba0edf2244df
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title: Multiple Identical Options in Switch Statements
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challengeType: 1
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videoUrl: ''
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localeTitle: 交换机语句中的多个相同选项
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---
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## Description
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<section id="description">如果从<code>switch</code>语句的<code>case</code>省略了<code>break</code>语句，则会执行以下<code>case</code>语句，直到遇到<code>break</code> 。如果您有多个具有相同输出的输入，则可以在<code>switch</code>语句中表示它们，如下所示： <blockquote> switch（val）{ <br>情况1： <br>案例2： <br>案例3： <br> result =“1,2或3”; <br>打破; <br>案例4： <br> result =“4 alone”; <br> } </blockquote> 1,2和3的情况都会产生相同的结果。 </section>
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## Instructions
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<section id="instructions">写一个switch语句来设置以下范围的<code>answer</code> ： <br> <code>1-3</code> - “低” <br> <code>4-6</code> - “中” <br> <code>7-9</code> - “高” <strong>注</strong> <br>您需要为范围中的每个数字都有一个<code>case</code>语句。 </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>sequentialSizes(1)</code>应返回“Low”
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testString: 'assert(sequentialSizes(1) === "Low", "<code>sequentialSizes(1)</code> should return "Low"");'
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- text: <code>sequentialSizes(2)</code>应该返回“Low”
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testString: 'assert(sequentialSizes(2) === "Low", "<code>sequentialSizes(2)</code> should return "Low"");'
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- text: <code>sequentialSizes(3)</code>应返回“Low”
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testString: 'assert(sequentialSizes(3) === "Low", "<code>sequentialSizes(3)</code> should return "Low"");'
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- text: <code>sequentialSizes(4)</code>应返回“Mid”
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testString: 'assert(sequentialSizes(4) === "Mid", "<code>sequentialSizes(4)</code> should return "Mid"");'
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- text: <code>sequentialSizes(5)</code>应返回“Mid”
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testString: 'assert(sequentialSizes(5) === "Mid", "<code>sequentialSizes(5)</code> should return "Mid"");'
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- text: <code>sequentialSizes(6)</code>应返回“Mid”
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testString: 'assert(sequentialSizes(6) === "Mid", "<code>sequentialSizes(6)</code> should return "Mid"");'
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- text: <code>sequentialSizes(7)</code>应该返回“High”
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testString: 'assert(sequentialSizes(7) === "High", "<code>sequentialSizes(7)</code> should return "High"");'
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- text: <code>sequentialSizes(8)</code>应该返回“High”
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testString: 'assert(sequentialSizes(8) === "High", "<code>sequentialSizes(8)</code> should return "High"");'
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- text: <code>sequentialSizes(9)</code>应该返回“High”
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testString: 'assert(sequentialSizes(9) === "High", "<code>sequentialSizes(9)</code> should return "High"");'
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- text: 您不应该使用任何<code>if</code>或<code>else</code>语句
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testString: 'assert(!/else/g.test(code) || !/if/g.test(code), "You should not use any <code>if</code> or <code>else</code> statements");'
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- text: 你应该有九个<code>case</code>陈述
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testString: 'assert(code.match(/case/g).length === 9, "You should have nine <code>case</code> statements");'
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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 sequentialSizes(val) {
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var answer = "";
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// Only change code below this line
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// Only change code above this line
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return answer;
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}
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// Change this value to test
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sequentialSizes(1);
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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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