reference

问题 For the sake of code readability, I'd like to move my Excel stuff to a function and leave the worksheet object available to write cell values as my program processes stuff. How do I call a function that creates an Excel spreadsheet and return a worksheet reference so I can continue to access the open/active Excel app object I've created? Function Create-Excel-Spreadsheet() { # open excel $excel = New-Object -ComObject excel.application $excel.visible = $True # add a worksheet $workbook =

问题 I'm building a website using Angularjs in which I've got a list of objects: $scope.fieldsToShow = [ { "fields": {}, "type": "LOGGED_IN" }, { "fields": {}, "type": "PERSONAL", "user": 2, "name": "Rick Astley" } ]; I then select one of the objects into a variable: var $scope.currentObject = $scope.fieldsToShow[1]; to let the user change it using the some checkboxes: <input ng-model="currentObject.fields.a" type="checkbox"> which changes both $scope.currentObject : { "fields": { "a": true },

问题 I'm building a website using Angularjs in which I've got a list of objects: $scope.fieldsToShow = [ { "fields": {}, "type": "LOGGED_IN" }, { "fields": {}, "type": "PERSONAL", "user": 2, "name": "Rick Astley" } ]; I then select one of the objects into a variable: var $scope.currentObject = $scope.fieldsToShow[1]; to let the user change it using the some checkboxes: <input ng-model="currentObject.fields.a" type="checkbox"> which changes both $scope.currentObject : { "fields": { "a": true },

问题 I've got the following program: #include<stdio.h> template<class T> void f(T t) { t += 1; } template<class T> void g(T &t) { t += 10; } int main() { int n=0; int&i=n; f(i); g(i); printf("%d\n",n); return 0; } I expect that because i is a reference to n , so I expect that the template function f should get int& for template type T . But in fact it doesn't. The output of the program is 10 , not 11 as I expected. So my question is, for f , why T matches int but not int& of variable i ? What's

问题 Sorry for the basic question but I'm learning, new to programming. I am trying to call a method that is in another class but I'm unable to without passing in the required values for the constructor of Cypher class. Do i really need a new instance of Cypher class each time i use a method in the Menu class and want to call a method of the Cypher class or how do I rewrite to avoid below. public class Runner { private static Cypher c; public static void main(String[] args) { Menu m = new Menu();

问题 def make_Ab(A,b): n = len(A) Ab = list(A) for index in range(0,n): Ab[index].append(b[index][0]) print(A) return Ab.copy() A = [[0.0, 1.0, 1.0, 2.0], [1.0, 3.0, 1.0, 5.0], [2.0, 0.0, 2.0, 4.0]] b = [[1],[2],[3]] print(A) [[0.0, 1.0, 1.0, 2.0], [1.0, 3.0, 1.0, 5.0], [2.0, 0.0, 2.0, 4.0]] Ab = make_Ab(A,b) print(A) [[0.0, 1.0, 1.0, 2.0, 1], [1.0, 3.0, 1.0, 5.0, 2], [2.0, 0.0, 2.0, 4.0, 3]] I don't get why does my function modify my original list. I didn't specify A as global in function (I've

问题 I.e. are these legal statements: int x = 1, y = z = 2; int& a = x, b = c = y; with the intended result that a is an alias for x , while b and c are aliases for y ? I ask simply because I read here Declaring a variable as a reference rather than a normal variable simply entails appending an ampersand to the type name which lead me to hesitate whether it was legal to create multiple reference variables by placing & before the variable name. 回答1: int x = 1, y = z = 2;--incorrect int& a = x, b =

问题 I.e. are these legal statements: int x = 1, y = z = 2; int& a = x, b = c = y; with the intended result that a is an alias for x , while b and c are aliases for y ? I ask simply because I read here Declaring a variable as a reference rather than a normal variable simply entails appending an ampersand to the type name which lead me to hesitate whether it was legal to create multiple reference variables by placing & before the variable name. 回答1: int x = 1, y = z = 2;--incorrect int& a = x, b =

问题 I want to programmatically connect some references to my VBA project using VBA code, i.e. without manually setting references using Tools>References. Is this possible? For example Microsoft office 12.0 Object library. 回答1: You do not mention an Office application. In MS Access, you can use: ReferenceFromFile "C:\Program Files\Common Files\Microsoft Shared\OFFICE14\MSO.DLL" That is, give the full path for the reference you wish to add. From: http://wiki.lessthandot.com/index.php/Add,_Remove,

问题 I"m writing a c# application using SQLite and I need the the SQLite Reference. Using NuGet I locate the package and the output window shows a successful install. Looking at the packages config file in the solution explorer it shows the version installed. <?xml version="1.0" encoding="utf-8"?> <packages> <package id="SQLite" version="3.13.0" targetFramework="net472" /> </packages> However under the project References in the Solution explorer SQLite is not there. I have watched tutorials online