what exactly the python's file.flush() is doin
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: IfoundthisinthePythondocumentationforFileObjects: flush()doesnotnecessarilywritethefile’sdatatodisk.Useflush()followedbyos.fsync()toensurethisb...
jquery beforeunload when closing (not leaving) the
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: HowcanIdisplayAreyousureyouwanttoleavethepage?whentheuseractuallytriestoclosethepage(clicktheXbuttononthebrowserwindowortab)notwhenhetriestonavig...
How can I create a secure Lua sandbox?
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: SoLuaseemsidealforimplementingsecureuserscriptsinsidemyapplication. However,mostexamplesofembeddingluaseemtoincludeloadingallthestandardlibrarie...
How do you return the column names of a table?
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: HowwouldIreturnthecolumnnamesofatableusingSQLServer2008?i.e.atablecontainsthesecolumns-id,name,address,countryandIwanttoreturntheseasdata. 回答1: ...
Best way to find the intersection of multiple sets
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: Ihavealistofsets: setlist=[s1,s2,s3...] Iwants1∩s2∩s3... Icanwriteafunctiontodoitbyperformingaseriesofpairwises1.intersection(s2),etc. Isthe...