parameter-passing

问题 Does PowerShell support splatting of positional arguments as opposed to named parameters? 回答1: PowerShell's argument splatting (see Get-Help about_Splatting) offers two fundamental choices: splatting via a hashtable : works for named arguments only splatting via an array -like value : works for positional arguments only - except in non-advanced functions that pass all [unbound] arguments through to another command via @Args , in which case named arguments are recognized too (i.e., by

问题 I want to get an URL as a get aparameter ex: example.com?domain=site.come?a=val&b=val the problem when i use query := r.URL.Query() domain := query.Get("domain") to get the domain name it give just domain=site.come?a=val I think because when the r.URL.Query() meet & it consider it as a new parameter does anyone know how can I solve this problem Thank you in advance. 回答1: You need to URL-Encode your query string, like this: package main import ( "fmt" "net/url" ) func main() { query := make

问题 If I pass a pointer P from function f1 to function f2, and modify the contents of P in f2, will these modifications be reflected in f1 automatically? For example, if I need to delete the first node in a linked list: void f2( Node *p) { Node *tmp = p; p = p -> next; delete tmp; } Will the changes made to P be reflected in the calling function, or will it now point to a memory space that has been deallocated? ( My intuitive answer here is no, changes are not reflected. However, good sources

问题 I am trying to use net-ssh-multi to run a command on a group of servers. For this taks, ssh-key authentication is not an option; a password has to be passed to each server defined in the session.use lines. Here's the problem, 'net/ssh' can take a password parameter, but 'net/ssh/multi' cannot. What I would like to do is somehting like this: require 'net/ssh' require 'net/ssh/multi' #The necessary data is contained in a Ticket object my_ticket = Ticket.new Net::SSH::Multi.start (:password =>

问题 I have the following that contains a NativeQuery where i need to set a parameter but somothing is wrong beacause parameter not set so the query is SELECT movieId, title, genres FROM movies where title like '%%'" so return all the rows. What is wrong public List<T> findMovie(String keyword) { Query q = getEntityManager().createNativeQuery("SELECT movieId, title, genres FROM movies where title like '%?%'", entityClass); q.setParameter(1, keyword); //etc return q.getResultList(); } 回答1: public

问题 I'm realy confused about returning large data in C++11. What is the most efficient way? Here is my related function: void numericMethod1(vector<double>& solution, const double input); void numericMethod2(pair<vector<double>,vector<double>>& solution1, vector<double>& solution2, const double input1, const double input2); and here is the way i use them: int main() { // apply numericMethod1 double input = 0; vector<double> solution; numericMethod1(solution, input); // apply numericMethod2 double

问题 The variables exported in a child-script are undefined the parent-script ( a.sh ): #!/bin/bash # This is the parent script: a.sh export var="5e-9" ./b.sh var export result=$res; # $res is defined and recognized in b.sh echo "result = ${result}" The child-script ( b.sh ) looks like this: #!/bin/bash # This is the child script: b.sh # This script has to convert exponential notation to SI-notation var1=$1 value=${!1} exp=${value#*e} reduced_val=${value%[eE]*} if [ $exp -ge -3 ] || [ $exp -lt 0 ]

问题 Okay... I'm trying to pass an Object which I declare in C# to a Python file with IronPython. So this is what I was thinking off: C# class: public class ParamObj { private string Obj_String; private int Obj_Int; public ParamObj(string lObjS, string lObjI) { Obj_String = lObjS; Obj_Int = lObjI; } public string getString() { return Obj_String; } public int getInt() { return Obj_Int; } public setString(string lStr) { Obj_String = lStr; } public setInt(int lInt) { Obj_Int = lInt; } } So i have my

问题 I'm currently working on a JavaScript exercise in FreeCodeCamp, and one of the test-cases my code should work with is a function call that looks like this: addTogether(2)(3); here is the bare-bones function I'm given: function addTogether() { return; } When I run the code below: function addTogether() { return arguments; } In the console, that the editor provides, I get: TypeError: addTogether(...) is not a function The instructions hint at using the arguments object, and it works well with

问题 I'm fairly new to php and I am trying to figure how do I set an optional parameter after the first optional parameter? For example I have the following code: function testParam($fruit, $veg='pota',$test='default test'){ echo '<br>$fruit = '.$fruit; echo '<br>$veg = '.$veg; echo '<br>Test = '.$test; } If i make the following calls: echo 'with all parama'; testParam('apple','carrot','some string'); //we get: //with all parama //$fruit = apple //$veg = carrot //Test = some string echo '<hr>