blocks|key|1182958|text|一般来说，它们不是用来做同样的事情的。Python对于原型开发非常有用，因为它非常简单，但当速度是一个重要因素时，它并不总是最佳选择，因为它是一种解释型语言。C%2B%2B可以进行大量优化，但正如您所说的，编写和理解起来可能要困难得多。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1182959|如果你想做系统或应用程序编程，你应该学习C%2B%2B。如果你是为了娱乐和休闲而编程，或者是为了解决像http://projecteuler.net/这样的问题，那么Python也是一个很好的选择。|offset|length|1182960|如果您想认真对待编程，我个人也建议您首先学习C/C%2B%2B，因为它教会了您内存管理的重要概念，而这在托管语言中可能会被忽略。|1182961|entityMap|0|LINK|mutability|MUTABLE|url|http://projecteuler.net/^0|0|1B|O|0|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Q|8|@]|9|@$D|R|E|S|1|T]]|A|$]]|$1|F|3|G|5|6|7|U|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|V|8|@]|9|@]|A|$]]]|I|$J|$5|K|L|M|A|$N|O]]]]

They're not used for the same kinds of things, in general. Python is very useful for prototyping since it is so simple, but isn't always the best choice when speed is an important factor, since it is an interpreted language. C++ can be heavily optimized, but as you said might be much more difficult to write and understand.

If you want to do systems or applications programming, you should learn C++. If you are programming for fun and leisure, or to solve problems like at <a href="http://projecteuler.net/" rel="nofollow noreferrer">http://projecteuler.net/</a> then Python is a good choice too.

I personally also recommend learning C/C++ first if you want to get very serious about programming, because it teaches you the important concept of memory management, which might be overlooked in managed languages.

blocks|key|1183006|text|如果您想知道以后是否还会使用C%2B%2B或Python语言，请不要担心一种语言的寿命。学习编程。不要学习用<insert+a+language+here>.编程|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1183007|这里有一个类比:如果你的车跑得很好(可以带你去你要去的地方，里程数很好，维护成本很低，相对安全)，那么就没有合理的理由去换另一辆车。没有。不管怎样。在你考虑下一步是什么品牌或型号之前，就把它推到了地面上。但是如果你已经环顾四周，想着买什么车，就去买吧，不要再问你认识的每个人你是否应该买。如果你需要询问，你需要改变它。事情就是这么简单。|1183008|entityMap^0|1E|P|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|M|8|@]|D|@]|E|$]]|$1|H|3|-4|5|6|7|N|8|@]|D|@]|E|$]]]|I|$]]

if you are trying to find out whether you are still going to be employed some
time later using C++ or Python, don't concern yourself with a single language's longevity.
Learn to program. Don't learn to program in <code>&lt;insert a language here&gt;.</code>

Here is an analogy: If your car is running fine (gets you where you're
going, has good mileage, cheap to maintain, relatively safe), there is
no logical reason to trade it in for another one. None. Whatsoever.
Drive it to the ground before you even consider what make or model to
get next. But if you are already looking around thinking what car to
get, just go get it, stop asking everybody you know whether you should
do it. If you need to ask, you need to change it. It's as simple as
that.

blocks|key|1398473|text|以下是值得学习Python的原因：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1398474|相对较少的问题受到算法速度的限制。相对较多的问题受到开发人员速度的限制。|1398475|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|$]]

Here's why it's worth learning Python:

A comparatively small number of problems are constrained by the speed of the algorithm. A comparatively large number of problems are bounded by the speed of the developer.

blocks|key|1183078|text|正如其他人所建议的那样:学习Python来学习算法和更高级别的概念，并将其用于原型设计和您可以使用的地方。学习C/C%2B%2B和/或Java，用于就业市场和必须使用的情况。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1183079|Python简单得多的语法和高级库使您能够专注于接口和抽象，同时仍然拥有一个函数原型。|1183080|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|$]]

As others have suggested: learn Python to study algorithms and higher level concepts and use it for prototyping and for places where you can. Learn C/C++ and/or Java for the job market and for cases where you must use it.

Python's vastly easier syntax and high level libraries allow you to focus on interfaces and abstractions while still having a functional prototype.

blocks|key|1398581|text|到目前为止还没有提到的一个重要区别是，像C%2B%2B这样的构建于本机代码的语言和默认情况下将VM放在您和硬件之间的Python语言之间的区别。对于执行低级工作，比如针对操作系统内核进行编码，本地语言将是首选。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1398582|然而，在实践中，当您在该上下文中工作时，通常意味着放弃所有C语言(作为可移植汇编程序的角色)，而不是能够使用C%2B%2B+(及其运行时库)，即使不是所有代码，也是大部分代码。|1398583|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|$]]

One significant difference not so far mentioned is the difference between a language like C++ that builds to native code, and a language like Python which by default puts a VM between you and the hardware. For doing low-level work, like coding against the OS kernel, the native language will be the preferred option.

In practise, though, when you're working in that context it usually means dropping all the way down C (in its role as portable assembler) rather than being able to use C++ (and its runtime libraries), for much if not all of the code.

blocks|key|1183175|text|人们经常使用C做的一件事是低级代码，比如操作系统内核和嵌入式软件，但据我所知，从来没有使用过Python。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1183176|C有许多构造，可以非常容易地将任意机器地址转换为指针并取消对其的引用，或者告诉编译器用于内存映射I/O的地址可能会更改，即使此程序不会更改它，或者指定对象在内存中的确切布局。它被设计为运行得尽可能快，浪费的内存尽可能少，而不是安全的。|1183177|这就是那些关于“让你搬起石头砸自己的脚”的评论所指的。|1183178|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|$]]

One thing that people often use C for, and never (to my knowledge) Python, is low-level code such as operating-system kernels and embedded software.

C has a lot of of constructs that make it very easy to, for example, convert an arbitrary machine address into a pointer and dereference it, or tell the compiler that an address used for memory-mapped I/O might change even though this program doesn’t change it, or to specify the exact layout of an object in memory. It’s designed to run as fast as possible, with as little wasted memory, rather than be safe.

That’s what the comments about “letting you shoot yourself in the foot” are mostly referring to.

I spent a few days reading about C++ and Python and I found that Python is so much simpler and easy to learn. 

So I wonder does it really worth spending time learning it? Or should I invest that time learning C++ instead?

What can C++ do and Python can't ?

What are the limits of Python?

原型开发

内存管理

内存映射

编译器

Python

Java

我花了几天时间阅读有关C++和Python的文章，我发现Python要简单得多，也很容易学习。所以我想知道花时间学习它真的值得吗？或者我应该花时间学习C++呢？C++能做什么，Python不能做什么？

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