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

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

其他回答

当我第一次写这个的时候。

10 PRINT "What is your name?"
20 INPUT A$
30 PRINT "Hello " A$
40 GOTO 30

它把人们都惊呆了!电脑记住了他们的名字!

编辑:只是补充一下。如果你能说服一个新程序员,这是他们能做的最酷的事情,他们就会成为优秀的程序员。现在,您几乎可以用一行代码来运行别人编写的库。就我个人而言,这样做绝对不会让我感到满足,也看不到教它有什么好处。

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)

我记得我发现简单的循环很神奇。每次我学习一门新语言,我通常会把这样的东西放在一起:

<?php
$numberOfBottles = 99;
print("<h1>$numberOfBottles Bottles of Beer on the Wall</h1>");
print("$numberOfBottles bottles of beer on the wall,<br />");
print("$numberOfBottles bottles of beer!<br />");
print("Take one down, pass it around,<br />");
for($numberOfBottles--; $numberOfBottles>1; $numberOfBottles--)
{
    print("$numberOfBottles bottles of beer on the wall!<br />");
    print("<br />");
    print("$numberOfBottles  bottles of beer on the wall,<br />");
    print("$numberOfBottles  bottles of beer!<br />");
    print("Take one down, pass it around,<br />");
}
print("One last bottle of beer on the wall!");
?>

也许一些while或foreach循环的变化也会很容易。

在这个时代,JavaScript是一种很好的方式来展示如何使用一些非常基本的工具(如记事本)进行编程。

jQuery效果是伟大的起点,任何人想要哇他们的朋友!

在这个页面中,只需单击页面的空白区域。

<html>
<head>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>
<script>
$(document.body).click(function () {
  if ($("#pic").is(":hidden")) {
    $("#pic").slideDown("slow");
  } else {
    $("#pic").slideUp();
  }
});
</script>
</head>
<body><img id="pic" src="http://www.smidgy.com/smidgy/images/2007/07/26/lol_cat_icanhascheezburger.jpg"/>
</body>
</html>

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!