blocks|key|1953290|text|数据结构是存储数据的方式，就像你可以把数据放在堆栈、队列、堆和桶中一样--你也可以对数据做同样的事情。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1953291|算法是食谱或说明，咖啡机的快速入门手册是制作咖啡的算法。|1953292|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

Data structures are ways of storing stuff, just like you can put stuff in stacks, queues, heaps and buckets - you can do the same thing with data.

Algorithms are recipes or instructions, the quick start manual for your coffee maker is an algorithm to make coffee.

blocks|key|1953325|text|算法是指令的列表，数据结构是表示信息的方式。如果你正在编写计算机程序，那么你已经在使用算法和数据结构了，即使你不知道这些词是什么意思。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1953326|我认为了解标准算法和数据结构的最大优势是：|1953327|您可以使用一个通用的language.|1953328|Other与其他程序员进行交流。|unordered-list-item|1953329|一旦您离开，人们将能够理解您的代码。|1953330|1953331|1953332|您还将学习解决常见问题的更好方法。即使不知道标准的方法，你也可能最终解决这些问题，但你将花费大量时间重新发明轮子，而且你的解决方案不太可能像成千上万的专家多年来致力于并改进的解决方案一样好。|1953333|entityMap^0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|R|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|S|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|T|8|@]|9|@]|A|$]]|$1|I|3|J|5|H|7|U|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|V|8|@]|9|@]|A|$]]|$1|L|3|-4|5|6|7|W|8|@]|9|@]|A|$]]|$1|M|3|N|5|6|7|X|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|P|$]]

An algorithm is a list of instructions and data structures are ways to represent information. If you're writing computer programs then you're already using algorithms and data structures even if you don't know what the words mean.

I think the biggest advantages in knowing standard algorithms and data structures are:

<ul>
<li>You can communicate with other programmers using a common language.</li>
<li>Other people will be able to understand your code once you've left.</li>
</ul>

You will also learn better methods for solving common problems. You could probably solve these problems eventually anyway even without knowing the standard way to do it, but you will spend a lot of time reinventing the wheel and it's unlikely your solutions will be as good as those that thousands of experts have worked on and improved over the years.

blocks|key|773597|text|很简单，算法就是你做某件事的步骤。例如，Coffee+Maker算法将运行如下内容|type|unstyled|depth|inlineStyleRanges|entityRanges|data|773598|773599|打开咖啡机|ordered-list-item|773600|研磨咖啡豆|773601|将咖啡放入过滤器中并将咖啡放入filter|773602|Add+process|773603|Drink+|773604|开始冲泡code咖啡|773605|773606|数据结构是我们以有组织的方式存储信息的一种方式。有关更多信息，请查看Wikipedia+Article。|offset|length|773607|entityMap|0|LINK|mutability|MUTABLE|url|http://en.wikipedia.org/wiki/Data_structure^0|0|0|0|0|0|0|0|0|0|Y|H|0|0^^$0|@$1|2|3|4|5|6|7|12|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|13|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|14|8|@]|9|@]|A|$]]|$1|F|3|G|5|E|7|15|8|@]|9|@]|A|$]]|$1|H|3|I|5|E|7|16|8|@]|9|@]|A|$]]|$1|J|3|K|5|E|7|17|8|@]|9|@]|A|$]]|$1|L|3|M|5|E|7|18|8|@]|9|@]|A|$]]|$1|N|3|O|5|E|7|19|8|@]|9|@]|A|$]]|$1|P|3|-4|5|6|7|1A|8|@]|9|@]|A|$]]|$1|Q|3|R|5|6|7|1B|8|@]|9|@$S|1C|T|1D|1|1E]]|A|$]]|$1|U|3|-4|5|6|7|1F|8|@]|9|@]|A|$]]]|V|$W|$5|X|Y|Z|A|$10|11]]]]

Algorithms are, quite simply, the steps by which you do something. For instance the Coffee Maker Algorithm would run something like

<ol>
<li>Turn on Coffee Maker</li>
<li>Grind Coffee Beans</li>
<li>Put in filter and place coffee in filter</li>
<li>Add Water</li>
<li>Start brewing process</li>
<li>Drink coffee</li>
</ol>

A data structure is a means by which we store information in a organized fashion. For further info, check out the <a href="http://en.wikipedia.org/wiki/Data_structure" rel="nofollow noreferrer">Wikipedia Article</a>.

blocks|key|773636|text|算法是一系列定义良好的步骤，导致解决某种类型的问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|773637|数据结构是存储和组织数据以便于访问和修改的一种方式。|773638|了解标准算法和数据结构的好处是，它们通常比您自己开发的更好。它们是比大多数程序员聪明得多的人几个月甚至几年工作的结果。了解一系列数据结构和算法可以让您大致适应数据结构或/和算法，并根据需要进行调整。|773639|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

An algorithm is a sequence of well defined steps leading to the solution of a type of problem.

A data structure is a way to store and organize data to facilitate access and modifications.

The benefit of knowing standard algorithms and data structures is they are mostly better than you yourself could develop. They are the result of months or even years of work by people who are far more intelligent than the majority of programmers. Knowing a range of data structures and algorithms allows you to fit a problem roughly to a data structure or/and algorithm and tweak as required.

blocks|key|653171|text|在经典的“烹饪/烘焙等价物”中，算法是食谱，数据结构是你的量杯，你的烤盘，你的饼干切割器，搅拌碗和基本上任何其他你会使用的工具(尽管你的cooker是你的编译器/解释器)。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|653172|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

In the classic "cooking/baking equivalent", algorithms are recipes and data structures are your measuring cups, your baking sheets, your cookie cutters, mixing bowls and essentially any other tool you would be using (your cooker is your compiler/interpreter, though).

blocks|key|652844|text|算法是计算中涉及的过程的表示。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|652845|如果你想把两个数字相加，那么算法可能是这样的：|652846|获取第一个数字；获取第二个数字；将第一个数字与第二个数字相加；返回结果。|652847|简单地说，算法只是一个结构化的要做的事情的列表-它在计算中的用途是允许人们看到代码背后的意图，并使逻辑错误(而不是语法错误)更容易发现。|652848|例如，如果上面的第三步是乘法而不是加法，那么某人将能够指出逻辑中的错误，而不必调试代码。|652849|数据结构是如何引用系统数据的表示。它可能与表结构完全匹配，也可能被反规范化以使数据访问更容易。最简单地说，它应该显示系统中的实体是如何相关的。|652850|这是一个太大的主题，不能详细讨论，但网上有很多资源。|652851|entityMap^0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Q|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|R|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|S|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|T|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|U|8|@]|9|@]|A|$]]|$1|L|3|M|5|6|7|V|8|@]|9|@]|A|$]]|$1|N|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|O|$]]

An algorithm is a representation of the process involved in a computation.

If you wanted to add two numbers then the algorithm might go:

Get first number;
Get second number;
Add first number to second number;
Return result.

At its simplest, an algorithm is just a structured list of things to do - its use in computing is that it allows people to see the intent behind the code and makes logical (as opposed to syntactical) errors easier to spot.

e.g. if step three above said multiply instead of add then someone would be able to point out the error in the logic without having to debug code.

A data structure is a representation of how a system's data should be referenced. It might match a table structure exactly or may be de-normalised to make data access easier. At its simplest it should show how the entities in a system are related.

It is too large a topic to go into in detail but there are plenty of resources on the web.

blocks|key|1955803|text|当你的软件拥有超过一小撮用户时，数据结构就变得至关重要。算法是一个广泛的主题，如果良好的数据结构知识不能解决您的性能问题，那么您将想要研究它。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1955804|您可能不需要一门新的编程语言就能从数据结构知识中获益，尽管PHP+(和其他高级语言)会让您看不到很多数据结构知识，除非您知道到哪里去找。对于这样的东西，Java是我个人最喜欢的学习语言，但这是相当主观的。|1955805|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

Data structures are critical the second your software has more than a handful of users. Algorithms is a broad topic, and you'll want to study it if a good knowledge of data structures doesn't fix your performance problems.

You probably don't need a new programming language to benefit from data structures knowledge, though PHP (and other high level languages) will make a lot of it invisible to you, unless you know where to look. Java is my personal favorite learning language for stuff like this, but that's pretty subjective.

blocks|key|1953480|text|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1953481|我的问题是为什么我需要知道算法和数据结构？|blockquote|1953482|1953483|1953484|如果您正在进行任何重要的编程，最好了解类数据结构和算法及其用法，以避免重复发明轮子。例如，如果您需要对一组事物进行排序，则需要了解各种排序方法，以便为手头的任务选择最合适的排序方法。如果您选择了错误的方法，那么在某些情况下，您可能会得到一个效率非常低的程序。|1953485|我需要先学习C、C%2B%2B还是|1953486|？|1953487|1953488|1953489|你需要知道如何用某种语言编程，才能理解算法和数据结构的作用。|1953490|1953491|了解算法和数据结构的实际好处是什么？|1953492|1953493|1953494|主要的实际好处是：|1953495|1953496|避免一直重复发明车轮，|unordered-list-item|1953497|避免方形车轮的问题。|1953498|1953499|entityMap^0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|-4|4|5|6|15|7|@]|8|@]|9|$]]|$1|A|3|B|4|C|6|16|7|@]|8|@]|9|$]]|$1|D|3|-4|4|5|6|17|7|@]|8|@]|9|$]]|$1|E|3|-4|4|5|6|18|7|@]|8|@]|9|$]]|$1|F|3|G|4|5|6|19|7|@]|8|@]|9|$]]|$1|H|3|I|4|5|6|1A|7|@]|8|@]|9|$]]|$1|J|3|K|4|C|6|1B|7|@]|8|@]|9|$]]|$1|L|3|-4|4|5|6|1C|7|@]|8|@]|9|$]]|$1|M|3|-4|4|5|6|1D|7|@]|8|@]|9|$]]|$1|N|3|O|4|5|6|1E|7|@]|8|@]|9|$]]|$1|P|3|-4|4|5|6|1F|7|@]|8|@]|9|$]]|$1|Q|3|R|4|C|6|1G|7|@]|8|@]|9|$]]|$1|S|3|-4|4|5|6|1H|7|@]|8|@]|9|$]]|$1|T|3|-4|4|5|6|1I|7|@]|8|@]|9|$]]|$1|U|3|V|4|5|6|1J|7|@]|8|@]|9|$]]|$1|W|3|-4|4|5|6|1K|7|@]|8|@]|9|$]]|$1|X|3|Y|4|Z|6|1L|7|@]|8|@]|9|$]]|$1|10|3|11|4|Z|6|1M|7|@]|8|@]|9|$]]|$1|12|3|-4|4|5|6|1N|7|@]|8|@]|9|$]]|$1|13|3|-4|4|5|6|1O|7|@]|8|@]|9|$]]]|14|$]]

<blockquote>
 My question is why would I need to know algorithms and data structures?
</blockquote>

If you are doing any non-trivial programming, it is a good idea to understand the class data structures and algorithms and their uses in order to avoid reinventing the wheel. For example, if you need to put an array of things in order, you need to understand the various ways of sorting, so that you can choose the most appropriate one for the task in hand. If you choose the wrong approach, you can end up with a program that is grossly inefficient in some circumstances.

<blockquote>
 Do I need to learn C, C++ or Java first?
</blockquote>

You need to know how to program in some language in order to understand what the algorithms and data structures do.

<blockquote>
 What are the practical benefits of knowing algorithms and data structures?
</blockquote>

The main practical benefits are:

<ul>
<li>to avoid having to reinvent the wheel all of the time,</li>
<li>to avoid the problem of square wheels.</li>
</ul>

I currently work with PHP and Ruby on Rails as a web developer. My question is why would I need to know algorithms and data structures? Do I need to learn C, C++ or Java first? What are the practical benefits of knowing algorithms and data structures? What are algorithms and data structures in layman’s terms? (As you can tell unfortunately I have not done a CS course.)

Please provide as much information as possible and thank you in advance ;-)

What are algorithms and data structures in layman’s terms?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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作为一名web开发人员，我目前使用PHP和Ruby on Rails。我的问题是，为什么我需要知道算法和数据结构？我需要先学习C、C++还是Java吗？了解算法和数据结构的实际好处是什么？用外行人的话来说，什么是算法和数据结构？(如你所知，不幸的是，我没有学过计算机科学课程。)请提供尽可能多的信息，并提前感谢您;-)

问用外行人的话来说，什么是算法和数据结构？
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回答 8

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