我正在寻找最酷的事情,你可以在几行简单的代码。我相信你可以用Haskell用15行写一个Mandelbrot集,但是很难理解。

我的目标是启发学生编程很酷。

我们知道编程很酷,因为你可以创造任何你想象到的东西——它是最终的创意出口。我想激励这些初学者,让他们尽可能多地克服早期学习的困难。

Now, my reasons are selfish. I'm teaching an Intro to Computing course to a group of 60 half-engineering, half business majors; all freshmen. They are the students who came from underprivileged High schools. From my past experience, the group is generally split as follows: a few rock-stars, some who try very hard and kind of get it, the few who try very hard and barely get it, and the few who don't care. I want to reach as many of these groups as effectively as I can. Here's an example of how I'd use a computer program to teach:

Here's an example of what I'm looking for: a 1-line VBS script to get your computer to talk to you: CreateObject("sapi.spvoice").Speak InputBox("Enter your text","Talk it") I could use this to demonstrate order of operations. I'd show the code, let them play with it, then explain that There's a lot going on in that line, but the computer can make sense of it, because it knows the rules. Then I'd show them something like this: 4(5*5) / 10 + 9(.25 + .75) And you can see that first I need to do is (5*5). Then I can multiply for 4. And now I've created the Object. Dividing by 10 is the same as calling Speak - I can't Speak before I have an object, and I can't divide before I have 100. Then on the other side I first create an InputBox with some instructions for how to display it. When I hit enter on the input box it evaluates or "returns" whatever I entered. (Hint: 'oooooo' makes a funny sound) So when I say Speak, the right side is what to Speak. And I get that from the InputBox. So when you do several things on a line, like: x = 14 + y; You need to be aware of the order of things. First we add 14 and y. Then we put the result (what it evaluates to, or returns) into x.

这就是我的目标,有一堆很酷的例子来演示,并在他们玩得开心的时候教他们。我在我室友身上尝试了这个例子,虽然我可能不会把它作为第一课,但她喜欢它,并学到了一些东西。

一些很酷的数学程序,可以做出漂亮的图形或容易理解的形状,这是很好的想法,我将研究这些。这里有一些复杂的actionscript示例,但这有点太高级了,我不能教flash。你还有什么其他的想法吗?


当前回答

如果你能负担得起硬件,使用Arduino板+处理会产生一些非常酷的东西,尽管对于那些可能对编程不感兴趣的人来说可能有点高级。

其他回答

Choose any language (or framework) where drawing a dot, line, box or circle to the screen is trivial. Designing games is where a lot of programmers first find their passion, and graphical output is fundamental to this. Choose a language which lets them easily show off their work to friends. If they need to get their friends to install runtime frameworks and follow complicated instructions to show off, then they won't be getting the necessary kudos and comments they need. Don't underestimate the value of a peer saying "Hey, that's cool!"

也许考虑到这两个标准,Javascript和Processing.js或Flash可能是一个很好的起点,尽管Flash显然有要求..呃…闪光。

切题思想:Flash实际上是一种非常好的教授OOP的方法,因为当你真正看到对象和类时,更容易掌握它们的概念!

大多数答案都使用某种API,这在某种程度上打破了10行代码的要求。每个API调用可能包含数百行代码。最初的问题说要使用“简单代码”。这对我来说意味着没有API调用。仅仅使用“简单代码”的定义,我们能得出什么样的答案呢?

如何展示你可以在任何网页浏览器中输入JavaScript到地址栏,然后让代码执行?

编辑:去一个有很多图片的页面,在地址栏试试这个:

javascript:R=0; x1=.1; y1=.05; x2=.25; y2=.24; x3=1.6; y3=.24; x4=300; y4=200; x5=300; y5=200; DI=document.images; DIL=DI.length; function A(){for(i=0; i<DIL; i++){DIS=DI[ i ].style; DIS.position='absolute'; DIS.left=Math.sin(R*x1+i*x2+x3)*x4+x5; DIS.top=Math.cos(R*y1+i*y2+y3)*y4+y5}R++ }setInterval('A()',5); void(0)

这是迄今为止我见过的最酷的东西……如果分解一下,其实很简单:

http://blogs.msdn.com/lukeh/archive/2007/04/03/a-ray-tracer-in-c-3-0.aspx

你可以让你的学生去codeplex IronPython silverlight示例站点,其中包括一个< 10行的修改画布和与鼠标交互的演示。你可以在这里找到silverlight的例子

仅仅看到在web浏览器中编写的代码,然后执行修改一个小的WPF可能会让一些人陶醉。