parameters

问题 I don't understand why in this constructor declaration, the input parameter is assigned 2. What does it mean? Does it mean that by default (unless something else is passed), size will be 2? Graph(int size = 2); I've never seen syntax like this, so I don't even know how to Google it :/ Thanks in advance! 回答1: You're right, the parameter value will be 2 by default. So you can call it normally: Graph g(5); in which case size will be equal to 5, or you can call it without providing a value: Graph

问题 I am unable to retrieve the Job name using groovy script below. Even when I run this script in the Execute System Groovy Build Step, it gives me the error as. Error: groovy.lang.MissingPropertyException: No such property: jenkinsProject for class: groovy.lang.Binding ---- def jobName = this.binding.jenkinsProject.name ---- I found in the below link that it has worked for someone, but somehow not working for me. Can anyone help please? How to get the job name on a groovy dynamic parameter in

问题 I am unable to retrieve the Job name using groovy script below. Even when I run this script in the Execute System Groovy Build Step, it gives me the error as. Error: groovy.lang.MissingPropertyException: No such property: jenkinsProject for class: groovy.lang.Binding ---- def jobName = this.binding.jenkinsProject.name ---- I found in the below link that it has worked for someone, but somehow not working for me. Can anyone help please? How to get the job name on a groovy dynamic parameter in

问题 This question already has answers here : How could comma separated initialization such as in Eigen be possibly implemented in C++? (3 answers) Closed last year . I just want to know if we can give two or more parameters to an overload of operator << An example will be more explicit: anyType operator<<(arg p1, arg p2) { DoSomethingWith(p1); DoSomethingWith(p2); return (*this); } And use it like this: anyVar << anyVar2, anyVar3; 回答1: No, that is not possible. The closest you can come would be

问题 Is it possible to parse sql parameters from plain commandtext? e.g. //cmdtext = SELECT * FROM AdWorks.Countries WHERE id = @id SqlCommand sqlc = new SqlCommand(cmdtext); SqlParameterCollection parCol = sqlc.Parameters //should contain now 1 paramter called '@id' 回答1: If a SQL Server is available, the best option may be to simply ask the server what it thinks ; the server has parsing and metadata functions built in, for example sp_describe_undeclared_parameters. 回答2: I ended up with this

问题 I am trying to write a Lisp function that can take optional and keyword arguments. The function begins (defun max-min (v &optional max min &keyword (start 0) (end nil)) When I try to call the function using the keyword arguments but not the optional ones, I get an error. What I'm trying to do is (max-min #(1 2 3 4) :start 1 :end 2) I'm getting the error Error: :START' is not of the expected type REAL' I assume that this is because it is trying to bind :start to max . How can I get this to

问题 I have a problem considering implicit parameters in Haskell (GHC). I have a function f , that assumes the implicit parameter x , and would like to encapsulate it in a context by applying f to g f :: (?x :: Int) => Int -> Int f n = n + ?x g :: (Int -> Int) -> (Int -> Int) g t = let ?x = 5 in t But when i try to evaluate g f 10 I get an error that x is not bound, e.g.: Unbound implicit parameter (?x::Int) arising from a use of `f' In the first argument of `g', namely `f' In the second argument

问题 I'm trying to send parameters to a Crystal Report document but it doesn't work, the document load the default parameters values. the values that I send are the type of the parameters that I've defined in the report document, and the parameter's names are ok. here is my code. ReportDocument crypRpt = new ReportDocument(); //crLibroDiario Libro = new crLibroDiario(); crypRpt.Load(@"Path\crDiarioLibro.rpt"); ParameterFieldDefinitions crParameterFieldDefinitions; ParameterFieldDefinition

问题 In order to take control of the parameters which an action accept you must: Make your action implement ParameterNameAware like: public class sample implements ParameterNameAware(){ public boolean acceptableParameterName(String parameterName) { if (("amount".equals(parameterName) || "sourceAccount".equals(parameterName) || "destinationAccount".equals(parameterName)) return true; else return false; } } This method is called for the excluded properties of param properties. So, you need to

问题 when doing a post to let url = '/api/registerCoin' it works. nginx forwards this to server:3000 , which is good! When I try the post to /api/updatePost with params nginx doesn't seem to point to the server. I am getting: /api/findPostData Failed to load resource: the server responded with a status of 404 (Not Found) in the browser. Is that due to the params being added to the url? I am having the same issue making a post to: POST https://v2.steemconnect.com/api/broadcast 500 () this seems not