大约有 16,000 项符合查询结果(耗时:0.0254秒) [XML]

https://stackoverflow.com/ques... 

How to reference generic classes and methods in xml documentation

... None of the answers shown so far work completely for me. ReSharper won't convert the see tag into a Ctrl+click-able link (e.g. ) unless it completely resolves. If the method in the OP were in a namespace called Test, the completely resolved link to the method shown would be: <see cref="M:Test...
https://stackoverflow.com/ques... 

Why is “if not someobj:” better than “if someobj == None:” in Python?

... In the first test, Python try to convert the object to a bool value if it is not already one. Roughly, we are asking the object : are you meaningful or not ? This is done using the following algorithm : If the object has a __nonzero__ special method (as do...
https://stackoverflow.com/ques... 

Open and write data to text file using Bash?

...x number of file descriptors the kernel can allocate can be found in /proc/sys/file-max or /proc/sys/fs/file-max but using any fd above 9 is dangerous as it could conflict with fd's used by the shell internally. So don't bother and only use fd's 0-9. If you need more the 9 file descriptors in a bash...
https://stackoverflow.com/ques... 

Algorithm to get the excel-like column name of a number

I'm working on a script that generate some Excel documents and I need to convert a number into its column name equivalent. For example: ...
https://stackoverflow.com/ques... 

How to export DataTable to Excel

... Try simple code, to convert DataTable to excel file as csv: var lines = new List<string>(); string[] columnNames = dataTable.Columns .Cast<DataColumn>() .Select(column => column.ColumnName) .ToArray(); var header = ...
https://stackoverflow.com/ques... 

Understanding implicit in Scala

... In scala implicit works as: Converter Parameter value injector Extension method There are 3 types of use of Implicit Implicitly type conversion : It converts the error producing assignment into intended type val x :String = "1" val y:Int = x String...
https://stackoverflow.com/ques... 

Type converting slices of interfaces

I'm curious why Go does't implicitly convert []T to []interface{} when it will implicitly convert T to interface{} . Is there something non-trivial about this conversion that I'm missing? ...
https://stackoverflow.com/ques... 

postgresql - sql - count of `true` values

...his works: SELECT count(*) AS total , sum(myCol::int) AS countTrue --convert Boolean to Integer FROM yourTable ; or better (to avoid :: and use standard SQL syntax): SELECT count(*) AS total , sum(CAST(myCol AS int)) AS countTrue --convert Boolean to Integer FROM yourTable ; ...
https://stackoverflow.com/ques... 

How to properly check if std::function is empty in C++11?

... an empty lambda doesn't really make sense. Behind the scenes the compiler converts a lambda expression into a struct (or class) definition, with the variables you capture stored as data members of this struct. A public function call operator is also defined, which is what allows you to invoke the l...
https://stackoverflow.com/ques... 

What’s the best way to check if a file exists in C++? (cross platform)

... Use boost::filesystem: #include <boost/filesystem.hpp> if ( !boost::filesystem::exists( "myfile.txt" ) ) { std::cout << "Can't find my file!" << std::endl; } ...