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

10打印“Mohan” 20 Goto 10

其他回答

import sys
for y in range(80):
    for x in range(80):
        c = complex(x-40.0,y-40.0) / 20.0
        z = 0.0
        for i in range(100):
            z = z*z+c
        sys.stdout.write('#' if abs(z) < 2.0 else ' ')
    sys.stdout.write('\n')

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。

这里有一些使用javascript的有趣的东西

function checkLove(love)
{
    if (love)
        alert("He he he, cool!");
    else
    {
        if(love != undefined) alert("Sorry, you must love me.");
        checkLove(confirm("Do you love me?"));
    }
}
checkLove();

差不多只有10行! 你可以把它包括在一个网页或只是复制粘贴下面的代码在你的浏览器的url栏,并按enter

javascript:function checkLove(love){if (love)alert("He he he, cool!");else{if(love != undefined) alert("Sorry, you must love me.");checkLove(confirm("Do you love me?"));}}checkLove();

很有趣,对吧?

Logo总是一个很好的起点。

Brian Harvey的UCBLogo页面上有这样一个简短的例子:

Here is a short but complete program in Berkeley Logo: to choices :menu [:sofar []] if emptyp :menu [print :sofar stop] foreach first :menu [(choices butfirst :menu sentence :sofar ?)] end And here's how you use it. You type choices [[small medium large] [vanilla [ultra chocolate] lychee [rum raisin] ginger] [cone cup]] and Logo replies small vanilla cone small vanilla cup small ultra chocolate cone small ultra chocolate cup small lychee cone small lychee cup small rum raisin cone small rum raisin cup small ginger cone small ginger cup medium vanilla cone medium vanilla cup medium ultra chocolate cone medium ultra chocolate cup medium lychee cone medium lychee cup medium rum raisin cone medium rum raisin cup medium ginger cone medium ginger cup large vanilla cone large vanilla cup large ultra chocolate cone large ultra chocolate cup large lychee cone large lychee cup large rum raisin cone large rum raisin cup large ginger cone large ginger cup The program doesn't have anything about the size of the menu built in. You can use any number of categories, and any number of possibilities in each category. Let's see you do that in four lines of Java!

wxPython第一步

import wx
app = wx.App()
wx.Frame(None, -1, 'simple.py').Show()
app.MainLoop()

Simple.py框架http://zetcode.com/wxpython/images/simple.jpg