How to Think Like a Computer Scientist- Learning with Python 3

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1、HowtoThinkLikeaComputerScientist:LearningwithPython3DocumentationRelease3rdEditionPeterWentworth,JeffreyElkner,AllenB.DowneyandChrisMeyersAugust12,2012CONTENTS1Thewayoftheprogram11.1ThePythonprogramminglanguage.......................11.2Whatisaprogram?................................31.3Whati

2、sdebugging?...............................31.4Syntaxerrors...................................31.5Runtimeerrors..................................41.6Semanticerrors..................................41.7Experimentaldebugging.............................41.8Formalandnaturallanguages..............

3、............51.9Thefirstprogram.................................61.10Comments....................................71.11Glossary.....................................71.12Exercises.....................................92Variables,expressionsandstatements112.1Valuesanddatatypes.....................

4、..........112.2Variables.....................................132.3Variablenamesandkeywords..........................142.4Statements....................................152.5Evaluatingexpressions..............................162.6Operatorsandoperands.............................162.7Typeconvert

5、erfunctions.............................172.8Orderofoperations................................182.9Operationsonstrings...............................192.10Input.......................................192.11Composition...................................202.12Themodulusoperator..................

6、............212.13Glossary.....................................212.14Exercises.....................................233Hello,littleturtles!253.1Ourfirstturtleprogram..............................253.2Instances—aherdofturtles...........................283.3Theforloop.............................

7、......293.4FlowofExecutionoftheforloop........................30i3.5Theloopsimplifiesourturtleprogram......................313.6Afewmoreturtlemethodsandtricks......................323.7Glossary.....................................343.8Exercise