Introduction to Systematic Program Design - Part 1
持续时间: 10 weeks
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Phones, diesel engines, animated newspapers, medical devices, games, political
campaigns, medical research, mining, transportation systems, ... and so
on, and on, and on... every day more of the world around us is at least
partly run by computer programs. This means that being able to design programs
- or at least be able to work with people who design programs - is becoming
a more and more valuable skill.
To build your own programs you need to know two things: how to use the
specific programming language and libraries needed, and the more general
skill of how to design a program.
This course presents a design method that will enable you to approach
the design of complex programs systematically. The method will work for
programs in this course as well as hard to design programs you develop
in the future.
Using this method you will learn how to model the information in a problem
domain, how to structure program data to mirror that information and how
to further structure the data to lead to a well organized program. You
will also learn to distinguish those parts of a program that are naturally
data driven, from those that should use an alternative algorithmic approach.
The method uses unit-tests to both produce a better developed design, and
to test your program as you develop it.
The course has a two-phase structure. In the first phase we use a simple
teaching language to cover the core of the design method. The second phase
consists of parallel tracks, with each track using a different popular
programming language and focusing on a different kind of problem. This
will help you bring the design method to whatever language and problem
domain interests you.
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正在上，教学用的是叫 DrRacket 的开源软件，语言是 Beginning Student Language, 一种很恐怖的语言。语法超复杂。不过讲语法只用了一周，然后开始按照 HtDP 提供的步骤设计程序。印象比较深刻的是这门课把视频组织得很好，每个视频都有描述，然后有对应的习题。下载一个 .rtk 文件然后自己按要求做，这符合该老师的理念，即光看视频是不能让你学会设计程序的，要自己动手才行，课程也提供丰富的习题，并且标明了难度和预计完成时间，视频还可以排序，总体来说很不错。只是老师有点沉闷，还喜欢仰着头说话……还有那个 DrRacket 的图标真是太难看了
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