大约有 48,000 项符合查询结果(耗时:0.0556秒) [XML]

https://stackoverflow.com/ques... 

What does an Asterisk (*) do in a CSS selector?

... It is a wildcard, this means it will select all elements within that portion of the DOM. For example, if I want apply margin to every element on my entire page you can use: * { margin: 10px; } You can also use this within sub-selections, for example the ...
https://stackoverflow.com/ques... 

How can I set the PHP version in PHPStorm?

...ndows: File -> Settings -> Languages & Frameworks > PHP then select your PHP version, for example, 7.0 This is very useful when your local system runs PHP 7.0, for example, but production is running PHP 5.5. That way PhpStorm will warn you which parts will not work in production, show ...
https://stackoverflow.com/ques... 

How to perform .Max() on a property of all objects in a collection and return the object with maximu

...c T MaxObject<T,U>(this IEnumerable<T> source, Func<T,U> selector) where U : IComparable<U> { if (source == null) throw new ArgumentNullException("source"); bool first = true; T maxObj = default(T); U maxKey = default(U); foreach (var ...
https://stackoverflow.com/ques... 

MySQL Multiple Joins in one query?

... You can simply add another join like this: SELECT dashboard_data.headline, dashboard_data.message, dashboard_messages.image_id, images.filename FROM dashboard_data INNER JOIN dashboard_messages ON dashboard_message_id = dashboard_messages.id INNER JO...
https://stackoverflow.com/ques... 

How to comment out a block of code in Python [duplicate]

... vim with nerdcommenter. Select the block you want and ,c<space> – dev_nut Oct 10 '14 at 22:37 add a comment ...
https://stackoverflow.com/ques... 

What is a “batch”, and why is GO used?

...add a column to a table, then it should be in its own batch. If you try to SELECT the new column in the same batch it fails because at parse/compile time the column does not exist. GO is used by the SQL tools to work this out from one script: it is not a SQL keyword and is not recognised by the eng...
https://stackoverflow.com/ques... 

How to easily initialize a list of Tuples?

..." }, new Hold { Id = 2, Name = "You" } }; var anonymousProjections = holds.Select(x => new { SomeNewId = x.Id, SomeNewName = x.Name }); var namedTuples = holds.Select(x => (TupleId: x.Id, TupleName: x.Name)); Reuse the tuples later with grouping methods or use a method to construct the...
https://www.tsingfun.com/it/da... 

创建增量同步Oracle物化视图问题 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术

..._tablename refresh fast on demand start with sysdate next sysdate+1/288 as select * from T_tablename@dblink_name;”。 现在,数据库A上此表的主键约束因主键字段值重复而被disable了,在第三个数据库C上新建这个物化视图却失败,说:“ORA-12014: 表 'T_MV_TE...
https://stackoverflow.com/ques... 

MS-DOS Batch file pause with enter key

Is it possible in MS-DOS batch file to pause the script and wait for user to hit enter key? 5 Answers ...
https://stackoverflow.com/ques... 

Get current language with angular-translate

...$translate.use() seems not to work on initial load of the app, to get last selected language from storage: $translate.storage().get( $translate.storageKey() ) or just $translate.proposedLanguage(); share | ...