文档介绍：Copyright 2008, 2009 ? by Albert Sweigart Some Rights Reserved "Invent Your puter Games with Python" is lic ensed under a mons Attribution- mercial-Share Alike United States License . You are free: To Share - to copy, distribute, display, and perform the wo rk To Remix - to make derivative works Under the following conditions: Attribution - You must attribute the work in the manner specif ied by the author or licensor (but not in any way that suggests that they endorse you or your use of the work). (Visibly include the title and author's name in any excerpts of this work.) mercial — You may not use this work mercial purpose s. Share Alike - If you alter, transform, or build upon this work , you may distribute the resulting work only under the same or similar licen se to this one. This summary is located here: /licenses/by- nc- sa// Your fair use and other rights are in no way affect ed by the above. There is a human-readable summary of the Legal Code (the full license), located here: /licenses/by- nc- sa/ Book Version 9 For Caro, with more love than I ever knew I had. A Note to Parents and Fellow Programmers I have more thanks for your interest and more apolo gies for this book's deficiencies than I can enumer ate. My motivation for writing this es from a gap I saw in today's literature for kids interested in l earning to program. I started programming when I was 9 years o ld in the BASIC language with a book similar to thi s one. During the course of writing this, I've realized ho w a modern language like Python has made programmin g far easier and versatile. Python has a gentle learning curve while still being a serious language that is used by programmers professionally. The current crop of programming books for kids that I've seen fell into two categories. First, books t hat did not teach programming so much as "game creation sof tware" or in dumbed down languages to make programming "easy". Or second,