global-variables

问题 I'm working in Excel 2010 VBA. Is there a way of accessing values in global variables declared outside a userform, in code inside the userform? Code inside my userform returns the global variable as null - can't work out why! The variable is declared in the ThisWorkbook module as: Public TargetCell As Range Public TargetCellWorksheet as Worksheet Public CurrentValue As Long Inside the userform, I have this code on the "Update" button: Private Sub Update_Click() MsgBox ("Start of Update sub.

问题 I'm working in Excel 2010 VBA. Is there a way of accessing values in global variables declared outside a userform, in code inside the userform? Code inside my userform returns the global variable as null - can't work out why! The variable is declared in the ThisWorkbook module as: Public TargetCell As Range Public TargetCellWorksheet as Worksheet Public CurrentValue As Long Inside the userform, I have this code on the "Update" button: Private Sub Update_Click() MsgBox ("Start of Update sub.

问题 From the following snippet i try to test NewGlobalRef and try to make clsStr global after declaring it in the local scope of if block. jstring Java_Package_LocalAndGlobalReference_returnGlobalReference (JNIEnv *env, jobject obj) { if(1) { printf("In function make global reference\n"); jclass clsStr ; jclass cls = (*env)->FindClass(env,"java/lang/String"); if( cls == NULL) return NULL; // create a global reference of clsStr clsStr = (*env)->NewGlobalRef(env,cls); // Delete the local reference,

问题 I am very new to Objective-C. I need to make a global variable. I have the files abc.h, abc.m, aaa.h, aaa.m and of course, the app delegate. I want to declare it in abc.h, use have the user assign it in abc.m and it be used in aaa.m. I want the variable to be an integer named x. I heard that I can use the App Delegate Somehow. I want the assigning variable in abc.m to be implemented in the middle of my code. Since I'm new, please make it simple!! Thanks in Advance! 回答1: You can use a property

问题 I'm trying to set a global variable in Visual Studio, but I can't make it static. Is there any way for me to set the variable as static and share it across different methods, or some way to save the variable each time it changes? 回答1: You have two options: 1 - Create a class that contains a Shared variable (this is the same a static variable in c#) Public Class GlobalVariables Public Shared Bar As String End Class You can then access this using the class name: GlobalVariables.Bar = "Hello

问题 Like python is it possible to define global variable inside a function ? for eg - in python def testFunc(): global testVar testVar += 1 is there a way to define testvar global in javascript inside a function? 回答1: Simply ignore the var keyword. function testFunc() { testVar = 1; // `testVar` is a Global variable now } Note: In the Python version of your code, you are not defining a global variable. You are referring the variable testVar defined in the global scope. Quoting from var MDN Docs,

问题 To start, I'm coming from a .NET world, where there are static classes (C#, also known as modules in VB) and instance classes - those you can instantiate. This question is about Javascript, where I'm trying to recreate the pattern I already know and make a module / static class. Here is the code: var MyModule = { variable1: 0, variable2: 1, method1: function() { //code goes here }, method2: function() { //mode code goes here }, method3: function() { //and some more just to prove the pattern }

问题 I am trying to implement a global button counter that updates as any/different users click it. So the idea is if one person clicks the button, I see the counter update on my instance of the page. I currently have the long polling technique working, or so I think, but after review I believe I have an error with "broadcasting" the update to all browsers. The error currently is that if for example I have two browsers open, and I continuously click on one browser, that browser that I click the

问题 I am want to change a global variable (or at least append to it) using a function. input="Hello" example=input func() { declare -x $example="${input} World" } func echo $input The output of this would be "Hello" The original value. I would like it if the function were to able to change the original value. Is there alternative to accomplishing this. Please note I need to set example=input and then perform on the operation on example (the variable). BTW, if I used eval instead the function will

问题 I'm having a bit of trouble understanding why some variables are local and some are global. E.g. when I try this: from random import randint score = 0 choice_index_map = {"a": 0, "b": 1, "c": 2, "d": 3} questions = [ "What is the answer for this sample question?", "Answers where 1 is a, 2 is b, etc.", "Another sample question; answer is d." ] choices = [ ["a) choice 1", "b) choice 2", "c) choice 3", "d) choice 4"], ["a) choice 1", "b) choice 2", "c) choice 3", "d) choice 4"], ["a) choice 1",