大约有 47,000 项符合查询结果(耗时:0.0556秒) [XML]

https://stackoverflow.com/ques... 

How to find the key of the largest value hash?

... You can use the select method if you want the key value pair returned: hash.select {|k,v| v == hash.values.max } share | improve this ans...
https://stackoverflow.com/ques... 

Convert pandas dataframe to NumPy array

...ution, in this case, to_numpy without explaining how to recover the column selecting functionality of as_matrix! I am sure there are other ways to select columns, but as_matrix was at least one of them! – Jérémie Jul 31 '19 at 23:50 ...
https://stackoverflow.com/ques... 

How to make a great R reproducible example

... X73 Class 1 A 266 960 Yes 2 A 373 315 No Notice the selection split 3 A 573 208 No (which can be turned off) 4 A 907 850 Yes 5 B 202 46 Yes 6 B 895 969 Yes <~~~ 70 % of selection is from the top rows 7 B 940 928 No 98 Y 37...
https://stackoverflow.com/ques... 

Can't choose class as main class in IntelliJ

... Select the folder containing the package tree of these classes, right-click and choose "Mark Directory as -> Source Root" share | ...
https://stackoverflow.com/ques... 

Context switches much slower in new linux kernels

... One of the roles of BIOS feature selection is to enable/disable devices. In some cases these selections are forced on the OS (e.g., on-motherboard USB, eSATA and NICs). In others the OS is expected to respect your wishes (e.g., EIST, C states, Hyperthreading...
https://stackoverflow.com/ques... 

How do I sort an observable collection?

... of the sorted partition from the unsorted. Worst case O(n). Essentially a selection sort (See below for output). public static void Sort<T>(this ObservableCollection<T> collection) where T : IComparable<T>, IEquatable<T> { List<T> sorted = collectio...
https://stackoverflow.com/ques... 

How can I auto increment the C# assembly version via our CI platform (Hudson)?

...d an existing item to you project (wait... read on before adding the file) Select the file and before you click Add, click the dropdown next to the add button and select "Add As Link". Repeat steps 5 and 6 for all existing and new projects in the solution When you add the file as a link, it stores...
https://stackoverflow.com/ques... 

Does Foreign Key improve query performance?

...the foreign key relationship already inforces that for you. So this: select p.ProductId, p.Name, c.CategoryId, c.Name AS Category from Products p inner join ProductCategories c on p.CategoryId = c.CategoryIdwhere c.CategoryId = 1; Becomes this: SELECT p.ProductId, p.Name, c.CategoryId, c.N...
https://stackoverflow.com/ques... 

ASP.NET Repeater bind List

... rptSample.DataSource = from c in lstSample select new { NAME = c }; in the repeater you put <%# Eval("NAME") %> share | improve this answer | ...
https://stackoverflow.com/ques... 

What's the difference between “git reset” and “git checkout”?

.... git checkout is about updating the working tree and switching currently "selected" branch (the HEAD). – Mikko Rantalainen Dec 9 '13 at 11:02 2 ...