在不到10行简单代码中，你能做的最酷的事情是什么?帮我启发初学者吧!

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

受Robin Day和John Topley回答的启发，让他们把下面的内容粘贴到浏览器的地址栏中:

javascript:var

或者更容易读懂:

var name=prompt("What is your name?", "");
var msg='Hello '+name+'<br>';
newwindow=window.open();
newdocument=newwindow.document;
for (var i=0;i<100;i++)
{
    newdocument.write(msg);
}
newdocument.close();

2009-05-05 09:04:17

其他回答

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)

2009-05-01 12:26:38

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。

2009-05-01 11:50:14

当我还是个孩子的时候，这是最酷的事情:

10 PRINT "BEDWYR "
20 GOTO 10

我想现在它已经不太管用了;)

2009-05-02 06:50:05

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>

2009-05-01 15:06:05

处理总是很有趣的，它创造的东西对所有类型的人都印象深刻。例如，布朗树:

int xf = (int) random(width);
int yf = (int) random(height);
int x = (int) random(width);
int y = (int) random(height);

background(0xFF);
while(x != xf || y != yf) {
  set(x,y,color(0,0,0));
  x = max(0, min(x + -1 + (int) random(3), width - 1) );
  y = max(0, min(y + -1 + (int) random(3), height - 1) );
}

2009-05-05 13:27:05

在不到10行简单代码中，你能做的最酷的事情是什么?帮我启发初学者吧!

推荐文章

最新文章

标签