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What is a typedef enum in Objective-C?

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: Idon\'tthinkIfundamentallyunderstandwhatanenumis,andwhentouseit. Forexample: typedefenum{ kCircle, kRectangle, kOblateSpheroid }ShapeType; Wh...

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How do I use the conditional operator?

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: I\'vealwayswonderedhowtowritethe\A?B:C\syntaxinaC++compatiblelanguage. Ithinkitworkssomethinglike:(Pseudocode) IfA>B C=A Else C=B Willanyv...

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DataFrame / Dataset groupBy behaviour/optimization

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: SupposewehaveDataFramedfconsistingofthefollowingcolumns: Name,Surname,Size,Width,Length,Weigh Nowwewanttoperformacoupleofoperations,forexampl...

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Purpose of asterisk before a CSS property

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: ThefollowingistakenfromtheYahooCSSreset.Cansomeonepleaseexplainthepurposeoftheasterisks? body{ font:13px/1.231arial,helvetica,clean,sans-serif; ...

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Why are multi-dimensional arrays in .NET slower th

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: Edit:Iapologizeeverybody.Iusedtheterm\jaggedarray\whenIactuallymeanttosay\multi-dimensionalarray\(ascanbeseeninmyexamplebelow).Iapologizeforusing...

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