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

微软有Small Basic,一个为“孩子”设计的IDE。

pic = Flickr.GetRandomPicture("beach")
Desktop.SetWallpaper(pic)

它是专门用来展示编程有多酷的。

其他回答

我认为油脂猴子是学生开始学习的好地方。在userscripts.org上有成千上万的示例脚本,是非常好的阅读材料,其中一些非常小。Greasemonkey脚本会影响网页,而学生们即使不会操纵网页,也会对这些网页很熟悉。Greasemonkey本身提供了一种非常简单的方法来在测试时编辑和启用/禁用脚本。

例如,下面是"谷歌Two Columns"脚本:

result2 = '<table width="100%" align="center" cellpadding="10" style="font-size:12px">';
gEntry = document.evaluate("//li[@class='g'] | //div[@class='g'] | //li[@class='g w0'] | //li[@class='g s w0']",document,null,XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE,null);
for (var i = 0; i < gEntry.snapshotLength; i++) {
  if (i==0) { var sDiv = gEntry.snapshotItem(i).parentNode.parentNode; }
  if(i%2 == 0) { result2 += '<tr><td width="50%" valign="top">'+gEntry.snapshotItem(i).innerHTML+'</td>'; }
  if(i%2 == 1) { result2 += '<td width="50%" valign="top">'+gEntry.snapshotItem(i).innerHTML+'</td></tr>'; }
}
sDiv.innerHTML = result2+'</table>';

if (document.getElementById('mbEnd') !== null) { document.getElementById('mbEnd').style.display = 'none'; }

我从我的孩子那里得到了一个很好的反应,用一个快速的VB脚本来操作微软代理字符。对于那些不熟悉MS Agent的人来说,它是一系列可以通过COM接口操作的动画屏幕角色。您可以在Microsoft Agent下载页面下载代码和字符。

下面几句台词会让梅林角色出现在屏幕上,飞来飞去,敲屏幕引起你的注意,并打招呼。

agentName = "Merlin"
agentPath = "c:\windows\msagent\chars\" & agentName & ".acs"
Set agent = CreateObject("Agent.Control.2")

agent.Connected = TRUE
agent.Characters.Load agentName, agentPath
Set character = agent.Characters.Character(agentName)

character.Show

character.MoveTo 500, 400
character.Play "GetAttention"
character.Speak "Hello, how are you?"
Wscript.Sleep 15000
character.Stop
character.Play "Hide"

您还可以使用许多其他命令。查看http://www.microsoft.com/technet/scriptcenter/funzone/agent.mspx了解更多信息。

编辑2011-09-02 我最近发现Microsoft Agent并没有安装在Windows 7上。不过,这里提供单独的下载。我没有测试过这个,所以无法验证它是否运行。

我认为任何可以做一些有用的事情的shell脚本都是向人们展示编程力量的好方法。在我看来,能够在一个小脚本上花费10-20分钟来自动化另一项任务并节省无数小时是非常令人印象深刻的。

例如,我曾经写过一个简单的Perl脚本,将一个目录中的mp3文件转换为另一种格式,然后将它们刻录到cd上。你用mp3目录的路径调用这个脚本,它就刻录了cd。至少当时我印象深刻。

这个bash代码将锁定您的计算机。这叫叉子炸弹。

:(){ :|:& };:

警告:不要运行它!

更多信息:http://en.wikipedia.org/wiki/Fork_bomb

在http://www.youtube.com/watch?v=a9xAKttWgP4上,你可以看到Conway的Game Of Life,它用大约5行APL(一种编程语言)编程(同时口头评论)。

它看起来很有趣,可以启发学生编程很酷,还有数学,数学,简洁的编程语言:)

顺便说一下,鲍勃·马丁叔叔在hanselminutes播客上提到了这个youtube视频。