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

许多人发现赌博令人兴奋和激励。您可以自己构建一个21点发牌者类,公开一个接口。然后,让孩子们建立一个21点玩家班。

你可以为每个学生的解决方案建立一个图表,显示金钱与时间的关系来激励他们完成任务。

这个系统的美妙之处在于你可以在几周内产生增量解决方案:

最简单的解决方法是总是低于某个水平。这大概有5行代码。

一个更好的解决方案是看看发牌人暴露了什么,并据此调整你的击球。

一个更好的解决方案是考虑到你所拥有的实际卡片——而不仅仅是它们价值的总和。

最终的解决方案可能是记录多手牌的发牌情况。(dealer对象可以对player对象进行dealerisshuffshuffle (int numberofdeck)调用,告诉玩家有多少副牌。)

另一个可能的方向是让游戏更具竞争性——玩家不是通过与庄家对抗来赢钱,而是与其他人的解决方案对抗。当然,为了公平起见,你必须轮换谁先击球。

其他回答

我用4行代码创建了高级计算器

和大多数其他评论者一样,我开始写代码是为了解决数学问题(或者为我所设计的糟糕游戏创造图像,如《夺宝奇兵大战僵尸》)。

真正让我开始学习数学和编程的是基于文本,选择自己的冒险风格的游戏……转向更多基于图像的游戏。我一开始是给图纸上色和绘制像素,直到我接触到几何……发现了如何用方程来画曲线、直线、方框等。

我的观点是,我可以真正进入处理(http://processing.org/),其中典型的程序看起来像这样:

void setup() 
{
  size(200, 200); 
  noStroke();
  rectMode(CENTER);
}

void draw() 
{   
  background(51); 
  fill(255, 204);
  rect(mouseX, height/2, mouseY/2+10, mouseY/2+10);
  fill(255, 204);
  int inverseX = width-mouseX;
  int inverseY = height-mouseY;
  rect(inverseX, height/2, (inverseY/2)+10, (inverseY/2)+10);
}

对我来说,这就是未来的“Logo”。

这里有一些简单的“hello world”示例,可以让人们快速地绘制和更改代码,并看到事情是如何崩溃的,以及会产生哪些奇怪的“意外”……一直到更高级的交互和分形创造……

我倾向于认为,人们会对那些与他们生活有关或相关的东西印象深刻。我会试着以他们知道和理解的东西为基础编写我的10行代码。以Twitter及其API为例。为什么不使用这个API来构建一些很酷的东西呢?下面的10行代码将从Twitter返回“公共时间线”,并在控制台应用程序中显示它……

using (var xmlr = XmlReader.Create("http://twitter.com/statuses/public_timeline.rss"))
    {
        SyndicationFeed
            .Load(xmlr)
            .GetRss20Formatter()
            .Feed
            .Items        
            .ToList()
            .ForEach( x => Console.WriteLine(x.Title.Text));
    }

我的代码样本可能不是最适合您的学生的。它是用c#编写的,使用。net 3.5。所以,如果你要教他们PHP、Java或c++,这是没有用的。然而,我的观点是,通过将你的10行代码与一些“酷、有趣、与学生相关”的东西联系起来,你的示例也会变得酷、有趣、与学生相关。

好运!

[是的,我知道我错过了使用语句和Main方法的几行,但我猜这10行并不需要真的是10行]

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。

这个c代码可能有点混乱,但我发现它非常强大

#include <unistd.h>
float o=0.075,h=1.5,T,r,O,l,I;int _,L=80,s=3200;main(){for(;s%L||
(h-=o,T= -2),s;4 -(r=O*O)<(l=I*I)|++ _==L&&write(1,(--s%L?_<L?--_
%6:6:7)+"World! \n",1)&&(O=I=l=_=r=0,T+=o /2))O=I*2*O+h,I=l+T-r;}

结果是这样的…只有3行…… 一种分形的Hello World…

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