这是本讲述sql的入门好书

Programming.in.Haskell.2nd.Edition.pdf全完整Programming.in.Haskell.2nd.Edition.pdf全完整

数字图像处理（第三版），电子档，R.GonzalezandR.Woods,“Digitalimageprocessing,”3rdEdition,PrenticeHall,NewYork,2008,

算法第4版(中文版扫描版+英文文字彩图版+代码+说明)Robert.Sedgewick.&.Kevin.Wayne.谢路云译内含：算法第4版-中文版扫描版-塞奇威克-带书签pdfAlgorithms.-.Fourth.Edition.Robert.Sedgewick.&.Kevin.Wayne代码（因为限制200MB，传不了了，这是网址，自己下载吧，放心是免费的源码网址：github：https://github.com/kevin-wayne/algs4书中所有代码库网址：algs4.jarhttps://algs4.cs.princeton.edu/code/algs4.jar说明及其其他资料下载地址上传东西不易，且行且珍惜，你用的好就好

英文原版，数字版，非影印版，无水印，有目录，第三版。
HowcanyoubringoutMySQL’sfullpower?WithHighPerformanceMySQL,you’lllearnadvancedtechniquesforeverythingfromdesigningschemas,indexes,andqueriestotuningyourMySQLserver,operatingsystem,andhardwaretotheirfullestpotential.Thisguidealsoteachesyousafeandpracticalwaystoscaleapplicationsthroughreplication,loadbalancing,highavailability,andfailover.UpdatedtoreflectrecentadvancesinMySQLandInnoDBperformance,features,andtools,thisthirdeditionnotonlyoffersspecificexamplesofhowMySQLworks,italsoteachesyouwhythissystemworksasitdoes,withillustrativestoriesandcasestudiesthatdemonstrateMySQL’sprinciplesinaction.Withthisbook,you’lllearnhowtothinkinMySQL.LearntheeffectsofnewfeaturesinMySQL5.5,includingstoredprocedures,partitioneddatabases,triggers,andviewsImplementimprovementsinreplication,highavailability,andclusteringAchievehighperformancewhenrunningMySQLinthecloudOptimizeadvancedqueryingfeatures,suchasfull-textsearchesTakeadvantageofmodernmulti-coreCPUsandsolid-statedisksExplorebackupandrecoverystrategies—includingnewtoolsforhotonlinebackups

优化后修复不可搜索的问题，文字版，矢量版，可复制，英文原版第五版最新，难得的数字系统设计的好资料，学习FPGA基础数字电路知识，强烈推荐！

张康聪---------地理信息系统导论.5th.Edition.随书光盘

是数字图像处理的经典教材，总共2个文件，便宜经典，不要错过。
（2-1）

Thisneweditiontotheclassicbookbyggplot2creatorHadleyWickhamhighlightscompatibilitywithknitrandRStudio.ggplot2isadatavisualizationpackageforRthathelpsuserscreatedatagraphics,includingthosethataremulti-layered,withease.Withggplot2,it'seasyto:producehandsome,publication-qualityplotswithautomaticlegendscreatedfromtheplotspecificationsuperimposemultiplelayers(points,lines,maps,tiles,boxplots)fromdifferentdatasourceswithautomaticallyadjustedcommonscalesaddcustomizablesmoothersthatusepowerfulmodelingcapabilitiesofR,suchasloess,linearmodels,generalizedadditivemodels,androbustregressionsaveanyggplot2plot(orpartthereof)forlatermodificationorreusecreatecustomthemesthatcapturein-houseorjournalstylerequirementsandthatcaneasilybeappliedtomultipleplotsapproachagraphfromavisualperspective,thinkingabouthoweachcomponentofthedataisrepresentedonthefinalplotThisbookwillbeusefultoeveryonewhohasstruggledwithdisplayingdatainaninformativeandattractiveway.SomebasicknowledgeofRisnecessary(e.g.,importingdataintoR).ggplot2isamini-languagespecificallytailoredforproducinggraphics,andyou'lllearneverythingyouneedinthebook.Afterreadingthisbookyou'llbeabletoproducegraphicscustomizedpreciselyforyourproblems,andyou'llfinditeasytogetgraphicsoutofyourheadandontothescreenorpage.TableofContentsPartIGettingStartedChapter1IntroductionChapter2GettingStartedwithggplot2Chapter3ToolboxPartIITheGrammarChapter4MasteringtheGrammarChapter5BuildaPlotLayerbyLayerChapter6Scales,AxesandLegendsChapter7PositioningChapter8ThemesPartIIIDataAnalysisChapter9DataAnalysisChapter10DataTransformationChapter11ModellingforVisualisationChapter12Programmingwithggplot2

Over110effectiverecipestohelpyoubuildandoperateOpenStackcloudcomputing,storage,networking,andautomationAboutThisBookExploremanynewfeaturesofOpenStack'sJunoandKiloreleasesInstall,configure,andadministercoreprojectswiththehelpofOpenStackObjectStorage,BlockStorage,andNeutronNetworkingservicesHarnesstheabilitiesofexperiencedOpenStackadministratorsandarchitects,andrunyourownprivatecloudsuccessfullyPractical,real-worldexamplesofeachserviceandanaccompanyingVagrantenvironmentthathelpsyoulearnquicklyInDetailOpenStackOpenSourcesoftwareisoneofthemostusedcloudinfrastructurestosupportsoftwaredevelopmentandbigdataanalysis.Itisdevelopedbyathrivingcommunityofindividualdevelopersfromaroundtheglobeandbackedbymostoftheleadingplayersinthecloudspacetoday.Itissimpletoimplement,massivelyscalable,andcanstorealargepoolofdataandnetworkingresources.OpenStackhasastrongecosystemthathelpsyouprovisionyourcloudstorageneeds.AddOpenStack'senterprisefeaturestoreducethecostofyourbusiness.Thisbookwillshowyouthestepstobuildupaprivatecloudenvironment.Atthebeginning,you'lldiscovertheusesofcloudservicessuchastheidentityservice,imageservice,andcomputeservice.You'lldiveintoNeutron,theOpenStackNetworkingservice,andgetyourhandsdirtywithconfiguringML2,networks,routers,andDistributedVirtualRouters.You'llthengathermoreexpertknowledgeonOpenStackcloudcomputingbymanagingyourcloud'ssecurityandmigration.Afterthat,wedelveintoOpenStackObjectstorageandhowtomanageserversandworkwithobjects,cluster,andstoragefunctionalities.Also,asyougodeeperintotherealmofOpenStack,you'lllearnpracticalexamplesofBlockstorage,LBaaS,andFWaaS:installationandconfigurationcoveredgroundup.Finally,youwilllearnOpenStackdashboard,AnsibleandForeman,Key

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。