NoStarchPress出版的关于信息安全的书，内容比较全面Inthishigh-levelsurveyoftheinformationsecurityfield,best-sellingauthorJasonAndresscoversthebasicsofawidevarietyoftopics,fromauthenticationandauthorizationtomaintainingconfidentialityandperformingpenetrationtesting.Usingreal-worldsecuritybreachesasexamples,FoundationsofInformationSecurityexplorescommonapplicationsoftheseconcepts,suchasoperationssecurity,networkdesign,hardeningandpatchingoperatingsystems,securingmobiledevices,aswellastoolsforassessingthesecurityofhostsandapplications.You’llalsolearnthebasicsoftopicslike:MultifactorauthenticationandhowbiometricsandhardwaretokenscanbeusedtohardentheauthenticationprocessTheprinciplesbehindmoderncryptography,includingsymmetricandasymmetricalgorithms,hashes,andcertificatesThelawsandregulationsthatprotectsystemsanddataAnti-malwaretools,firewalls,andintrusiondetectionsystemsVulnerabilitiessuchasbufferoverflowsandraceconditionsAvaluableresourceforbeginningsecurityprofessionals,networksystemsadministrators,oranyonenewtothefield,FoundationsofInformationSecurityisagreatplacetostartyourjourneyintothedynamicandrewardingfieldofinformationsecurity.

http://www.amazon.com/Foundations-Python-Network-Programming-Brandon/dp/1430258543这本书是2014年底出版的，基于最新的python3.4版本。
配书源码链接https://github.com/brandon-rhodes/fopnp目录Chapter1:IntroductiontoClient-ServerNetworkingChapter2:UDPChapter3:TCPChapter4:SocketNamesandDNSChapter5:NetworkDataandNetworkErrorsChapter6:TLS/SSLChapter7:ServerArchitectureChapter8:CachesandMessageQueuesChapter9:HTTPClientsChapter10:HTTPServersChapter11:TheWorldWideWebChapter12:BuildingandParsingE-MailChapter13:SMTPChapter14:POPChapter15:IMAPChapter16:TelnetandSSHChapter17:FTPChapter18:RPCInstead,thisbookfocusesonnetworkprogramming,usingPython3foreveryexamplescriptandsnippetofcodeatthePythonprompt.Theseexamplesareintendedtobuildacomprehensivepictureofhownetworkclients,networkservers,andnetworktoolscanbestbeconstructedfromthetoolsprovidedbythelanguage.ReaderscanstudythetransitionfromPython2toPython3bycomparingthescriptsusedineachchapterofthesecondeditionofthisbookwiththelistingshereinthethirdedition—bothofwhichareavailableathttps://github.com/brandon-rhodes/fopnp/tree/m/thankstotheexcellentApresspolicyofmakingsourcecodeavailableonline.ThegoalineachofthefollowingchaptersissimplytoshowyouhowPython3canbestbeusedtosolvemodernnetworkprogrammingproblems.

Foundations_of_Analog_and_Digital_Electronic_Circuits

在日常工作中，钉钉打卡成了我生活中不可或缺的一部分。然而，有时候这个看似简单的任务却给我带来了不少烦恼。 每天早晚，我总是得牢记打开钉钉应用，点击"工作台"，再找到"考勤打卡"进行签到。有时候因为工作忙碌，会忘记打卡，导致考勤异常，影响当月的工作评价。而且，由于我使用的是苹果手机，有时候系统更新后，钉钉的某些功能会出现异常，使得打卡变得更加麻烦。 另外，我的家人使用的是安卓手机，他们也经常抱怨钉钉打卡的繁琐。尤其是对于那些不太熟悉手机操作的长辈来说，每次打卡都是一次挑战。他们总是担心自己会操作失误，导致打卡失败。 为了解决这些烦恼，我开始思考是否可以通过编写一个全自动化脚本来实现钉钉打卡。经过一段时间的摸索和学习，我终于成功编写出了一个适用于苹果和安卓系统的钉钉打卡脚本。