scope

问题 I'm hesitant to ask, but there's no documentation that I can find for VBA . Relevant (but I don't think a dupe): C++ When are global variables created? In Java, should variables be declared at the top of a function, or as they're needed? C++ Declare variables at top of function or in separate scopes? and the most likely relevant When are a module's variables in VB.NET instantiated? I also took a look at C# on programmers.SE. I think I'm using the word "Instantiate" right, but please correct

问题 When inspecting scopes of a function in the DevTools console I noticed a "script" scope. After a bit of research it seems to be created for let and const variables. Scopes of a function in a script without const or let variables: Scopes of a function in a script with a let variable: Yet the following prints 1 in the console - variables in the script scope can still be accessed from other scripts: <script>let v = 1</script> <script>console.log(v)</script> I've heard of ES6 modules in which top

问题 When inspecting scopes of a function in the DevTools console I noticed a "script" scope. After a bit of research it seems to be created for let and const variables. Scopes of a function in a script without const or let variables: Scopes of a function in a script with a let variable: Yet the following prints 1 in the console - variables in the script scope can still be accessed from other scripts: <script>let v = 1</script> <script>console.log(v)</script> I've heard of ES6 modules in which top

问题 I'm doing a simple normalization on a vector (weights), trying to make use of STL algorithms to make the code as clean as possible (I realize this is pretty trivial with for loops): float tot = std::accumulate(weights.begin(), weights.end(), 0.0); std::transform(weights.begin(), weights.end(), [](float x)->float{return(x/tot);}); At present, tot is not visible to the anonymous function, so this doesn't compile. What's the best way of making a local variable visible to the anonymous function?

问题 I'm doing a simple normalization on a vector (weights), trying to make use of STL algorithms to make the code as clean as possible (I realize this is pretty trivial with for loops): float tot = std::accumulate(weights.begin(), weights.end(), 0.0); std::transform(weights.begin(), weights.end(), [](float x)->float{return(x/tot);}); At present, tot is not visible to the anonymous function, so this doesn't compile. What's the best way of making a local variable visible to the anonymous function?

问题 Consider the following code: public class Foo { class Bar { private String barbar; public Bar( String b ) { barbar = b; } } class Meh { Bar b = new Bar("BAR!"); public void displayName() { System.out.println( b.barbar ); } } } Java allows class Meh to access the private instance variable, barbar , which is declared as private within Bar . I know this question has been asked before here. However, the answer just basically reiterates that the observed scope is what it is (that barbar is

问题 Consider the following code: public class Foo { class Bar { private String barbar; public Bar( String b ) { barbar = b; } } class Meh { Bar b = new Bar("BAR!"); public void displayName() { System.out.println( b.barbar ); } } } Java allows class Meh to access the private instance variable, barbar , which is declared as private within Bar . I know this question has been asked before here. However, the answer just basically reiterates that the observed scope is what it is (that barbar is

问题 During my tinkering with PS 5.1 related to the objective of question Fully change language for the current PowerShell session I observed a "strange" behavior: > [system.threading.thread]::currentthread.currentculture ; [system.threading.thread]::currentthread.currentuiculture ; LCID Name DisplayName ---- ---- ----------- 1033 en-US English (United States) 1033 en-US English (United States) > function Set-CultureWin([System.Globalization.CultureInfo] $culture) { [System.Threading.Thread]:

问题 During my tinkering with PS 5.1 related to the objective of question Fully change language for the current PowerShell session I observed a "strange" behavior: > [system.threading.thread]::currentthread.currentculture ; [system.threading.thread]::currentthread.currentuiculture ; LCID Name DisplayName ---- ---- ----------- 1033 en-US English (United States) 1033 en-US English (United States) > function Set-CultureWin([System.Globalization.CultureInfo] $culture) { [System.Threading.Thread]:

问题 Preamble: I feel I probably have wasted so much time for a simple situation... Now, I am making a game with pygame, and at some point, I wanted to split files into two, namely main.py and configurations.py in order to make it more readable. Everything was going good, until I ran into this problem. I will share whole code at the bottom, but I want to summarize first: Now first of all, in main.py , I am importing by, from configurations import * now, the game loop on the main.py depends on the