134 lines
4.1 KiB
Markdown
134 lines
4.1 KiB
Markdown
---
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title: Execute Brain****
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id: 59e0a8df964e4540d5abe599
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challengeType: 5
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videoUrl: ''
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localeTitle: 执行大脑****
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---
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## Description
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<section id="description"><p>编写一个函数来实现Brain ****解释器。该函数将字符串作为参数，并应返回一个字符串作为输出。更多细节如下： </p><p> <a href="http://rosettacode.org/wiki/Brainf***" title="Brainf ***">RCBF</a>是一套为各种语言的Rosetta Code编写的<a href="http://rosettacode.org/wiki/Brainf***" title="Brainf ***">Brainf ***</a>编译器和解释器。 </p><p>以下是RCBF每个版本的链接。 </p><p>实现只需要正确实现以下指令： </p><p> {| </p><p> ！命令</p><p> ！描述</p><p> | - </p><p> |风格=“文本对齐：中心” | <code>></code> ||将指针向右移动</p><p> | - </p><p> |风格=“文本对齐：中心” | <code><</code> ||将指针移到左侧</p><p> | - </p><p> |风格=“文本对齐：中心” | <code>+</code> ||增加指针下的内存单元格</p><p> | - </p><p> |风格=“文本对齐：中心” | <code>-</code> ||减少指针下的内存单元格</p><p> | - </p><p> |风格=“文本对齐：中心” | <code>.</code> ||输出指针处单元格表示的字符</p><p> | - </p><p> |风格=“文本对齐：中心” | <code>,</code> ||输入一个字符并将其存储在指针的单元格中</p><p> | - </p><p> |风格=“文本对齐：中心” | <code>[</code> ||如果指针下的单元格为0，则跳过匹配<code>]</code> </p><p> | - </p><p> |风格=“文本对齐：中心” | <code>]</code> ||跳回匹配<code>[</code>如果指针下的单元格非零</p><p> |} </p><p>允许任何单元格大小，EOF（ <u>E</u> nd- <u>O</u> - <u>F</u> ile）支持是可选的，无论您是否有有界或无界内存。 </p></section>
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## Instructions
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<section id="instructions">
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</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>brain(bye)</code>应该重新调整一个字符串
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testString: 'assert(typeof brain(bye) === "string", "<code>brain(bye)</code> should return a string");'
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- text: '<code>brain("++++++[>++++++++++<-]>+++++.")</code should return "A"'
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testString: 'assert.equal(brain("++++++[>++++++++++<-]>+++++."),"A", "<code>brain("++++++[>++++++++++<-]>+++++.")</code should return "A"");'
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- text: '<code>brain(bye)</code>应该回归<code>Goodbye, World!\\r\\n</code>'
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testString: 'assert.equal(brain(bye), "Goodbye, World!\r\n", "<code>brain(bye)</code> should return <code>Goodbye, World!\\r\\n</code>");'
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- text: '<code>brain(hello)</code>应该回归<code>Hello World!\\n</code> ''
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testString: 'assert.equal(brain(hello), "Hello World!\n", "<code>brain(hello)</code> should return <code>Hello World!\\n</code>");'
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- text: '<code>brain(fib)</code>应该返回<code>1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89</code>'
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testString: 'assert.equal(brain(fib), "1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89", "<code>brain(fib)</code> should return <code>1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89</code>");'
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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 brain (prog) {
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// Good luck!
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}
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```
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</div>
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### Before Test
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<div id='js-setup'>
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```js
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let fib=`+
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++
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+++
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++++
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+>+>>
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>>++++
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+++++++
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++++++++
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+++++++++
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++++++++++
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++++++>++++
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++++++++++++
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+++++++++++++
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+++<<<<<<[>[>>
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>>>>+>+<<<<<<<-
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]>>>>>>>[<<<<<<<
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+>>>>>>>-]<[>++++
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++++++[-<-[>>+>+<<
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<-]>>>[<<<+>>>-]+<[
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>[-]<[-]]>[<<[>>>+<<
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<-]>>[-]]<<]>>>[>>+>+
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<<<-]>>>[<<<+>>>-]+<[>
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[-]<[-]]>[<<+>>[-]]<<<<
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<<<]>>>>>[++++++++++++++
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+++++++++++++++++++++++++
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+++++++++.[-]]++++++++++<[
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->-<]>+++++++++++++++++++++
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+++++++++++++++++++++++++++.
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[-]<<<<<<<<<<<<[>>>+>+<<<<-]>
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>>>[<<<<+>>>>-]<-[>>.>.<<<[-]]
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<<[>>+>+<<<-]>>>[<<<+>>>-]<<[<+
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>-]>[<+>-]<<<-]`;
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let hello='++++++++[>++++[>++>+++>+++>+<<<<-]>+>+>->>+[<]<-]>>.>---.+++++++..+++.>>.<-.<.+++.------.--------.>>+.>++.'
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let bye='++++++++++[>+>+++>++++>+++++++>++++++++>+++++++++>++++++++++>+++++++++++>++++++++++++<<<<<<<<<-]>>>>+.>>>>+..<.<++++++++.>>>+.<<+.<<<<++++.<++.>>>+++++++.>>>.+++.<+++++++.--------.<<<<<+.<+++.---.';
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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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