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《如何像计算机科学家那样思考》是一本使用Python语言教编程的教程，适合初学者和教育者。书中通过简单易懂的方式介绍了编程的核心概念，并结合实际案例帮助读者理解。

• 文件名称：How to Think Like a Computer Scientist--Learinig with Python.pdf

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• 文件标签：Python编程、计算机科学、教育

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How to Think Like a Computer Scientist
Learning with Python

How to Think Like a Computer Scientist

Learning with Python

Allen Downey
Jeffrey Elkner
Chris Meyers

Green Tea Press

Wellesley, Massachusetts

Copyright c⃝2002 Allen Downey, Jeffrey Elkner, and Chris Meyers.

Edited by Shannon Turlington and Lisa Cutler. Cover design by Rebecca Gimenez.

Printing history:

April 2002: First edition.

Green Tea Press
1 Grove St.
P.O. Box 812901
Wellesley, MA 02482

Permission is granted to copy, distribute, and/or modify this document under the
terms of the GNU Free Documentation License, Version 1.1 or any later version pub-
lished by the Free Software Foundation; with the Invariant Sections being “Foreword,”
“Preface,” and “Contributor List,” with no Front-Cover Texts, and with no Back-
Cover Texts. A copy of the license is included in the appendix entitled “GNU Free
Documentation License.”

The GNU Free Documentation License is available from www.gnu.org or by writing to
the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-
1307, USA.

The original form of this book is LATEX source code. Compiling this LATEX source has
the effect of generating a device-independent representation of a textbook, which can
be converted to other formats and printed.

The LATEX source for this book is available from http://www.thinkpython.com

Publisher’s Cataloging-in-Publication (provided by Quality Books, Inc.)

Downey, Allen
How to think like a computer scientist : learning
with Python / Allen Downey, Jeffrey Elkner, Chris
Meyers. – 1st ed.
p. cm.
Includes index.
ISBN 0-9716775-0-6
LCCN 2002100618

1. Python (Computer program language) I. Elkner,
   Jeffrey. II. Meyers, Chris. III. Title

QA76.73.P98D69 2002
005.13’3
QBI02-200031

Foreword

By David Beazley

As an educator, researcher, and book author, I am delighted to see the com-
pletion of this book. Python is a fun and extremely easy-to-use programming
language that has steadily gained in popularity over the last few years. De-
veloped over ten years ago by Guido van Rossum, Python’s simple syntax and
overall feel is largely derived from ABC, a teaching language that was developed
in the 1980’s. However, Python was also created to solve real problems and it
borrows a wide variety of features from programming languages such as C++,
Java, Modula-3, and Scheme. Because of this, one of Python’s most remark-
able features is its broad appeal to professional software developers, scientists,
researchers, artists, and educators.

Despite Python’s appeal to many different communities, you may still wonder
“why Python?” or “why teach programming with Python?” Answering these
questions is no simple task—especially when popular opinion is on the side of
more masochistic alternatives such as C++ and Java. However, I think the
most direct answer is that programming in Python is simply a lot of fun and
more productive.

When I teach computer science courses, I want to cover important concepts
in addition to making the material interesting and engaging to students. Un-
fortunately, there is a tendency for introductory programming courses to focus
far too much attention on mathematical abstraction and fo...