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

也许这很愚蠢,但我认为孩子们会直观地理解它——从“你最喜欢的“程序员”卡通是什么?”到“你最喜欢的“程序员”卡通是什么?

例如,Foxtrot的Jason Fox在板子上写代码进行循环。

可能的兴趣点:编程有时可能会帮助你摆脱麻烦……

其他回答

当我第一次想出bash叉式炸弹的时候,我觉得它真的很可爱。如此简单,但它能做的事情却很整洁:

:(){ :|:& };:

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。

Mandelbrot集合可以用一种不太复杂的方式来表示,例如下面的Java:

public class MiniMandelbrot {
    public static void main(String[] args) {
        int[] rgbArray = new int[256 * 256];
        for (int y=0; y<256; y++) {
            for (int x=0; x<256; x++) {
                double cReal=x/64.0-2.0, cImaginary=y/64.0-2.0;
                double zReal=0.0, zImaginary=0.0, zRealSquared=0.0, zImaginarySquared=0.0;
                int i;
                for (i = 0; (i < 63) && (zRealSquared + zImaginarySquared < 4.0); i++) {
                    zImaginary = (zReal * zImaginary) + (zReal * zImaginary) + cImaginary;
                    zReal = zRealSquared - zImaginarySquared - cReal;
                    zImaginarySquared = zImaginary * zImaginary;
                    zRealSquared = zReal * zReal;
                }
                rgbArray[x+y*256] = i * 0x040404;
            }
        }
        java.awt.image.BufferedImage bufferedImage = new java.awt.image.BufferedImage(256, 256, 1);
        bufferedImage.setRGB(0, 0, 256, 256, rgbArray, 0, 256);
        javax.swing.JOptionPane.showMessageDialog(null, new javax.swing.ImageIcon(bufferedImage), "The Mandelbrot Set", -1);
    }
}

小书签怎么样?它将向他们展示如何操作他们每天使用的东西(互联网),而不需要任何开发工具。

我为一款论坛游戏写了这篇文章——用尽可能少的行数写出ROT13算法。那么在C中呢?

rot13(char*s)
{
    int i=-1;
    do{
        i++;
        s[i] = (s[i] >= 65 && s[i] <=90 || s[i] >= 97 &&s [i] <= 122) ?
            ((s[i] < 97) ? 65 : 97) + (((s[i] - ((s[i] < 97) ? 65 : 97)) + 13) % 26) :
            s[i];
    } while(s[i] > 0);
}

我认为三元运算符非常简洁,尽管我听说它比if结构要慢。我还没有为自己计时……