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...
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...
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...
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; ...
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...