parameters

问题 Closed . This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 20 hours ago . Improve this question I want to float a window by signal with param in pyqt5. I used already QDockWidget but i can launch only one float window. I need multiple floating window by some pramas. is there any easy way to do this? from PyQt5.QtWidgets import QMainWindow, QApplication, QPushButton,

问题 I have a large Shiny app, and I would like to provide the possibility to export a flexdashboard report. Thus, I added a downloadHandler which passes certain params to the flexdashboard. The flexdashboard itself should work without being deployed on a server, thus I do not use the runtime: shiny option. How can I pass reactive values to the flexdashboard? If I do something like params <- list(y = test()) , the report creation breaks. Relevant part of server.R: test <- reactive({ [[SOME STUFF]]

问题 I have a large Shiny app, and I would like to provide the possibility to export a flexdashboard report. Thus, I added a downloadHandler which passes certain params to the flexdashboard. The flexdashboard itself should work without being deployed on a server, thus I do not use the runtime: shiny option. How can I pass reactive values to the flexdashboard? If I do something like params <- list(y = test()) , the report creation breaks. Relevant part of server.R: test <- reactive({ [[SOME STUFF]]

问题 How can I implement "positional-only parameter" for a function that is user defined in python? def fun(a, b, /): print(a**b) fun(5,2) # 25 fun(a=5, b=2) # should show error 回答1: The only solution would be to use a * -parameter, like so: def fun(*args): print(args[0] ** args[1]) But this comes with its own problems: you can't guaranteed the caller will provide exactly two arguments; your function has to be prepared to handle 0 or 1 arguments. (It's easy enough to ignore extra arguments, so I

问题 How can I implement "positional-only parameter" for a function that is user defined in python? def fun(a, b, /): print(a**b) fun(5,2) # 25 fun(a=5, b=2) # should show error 回答1: The only solution would be to use a * -parameter, like so: def fun(*args): print(args[0] ** args[1]) But this comes with its own problems: you can't guaranteed the caller will provide exactly two arguments; your function has to be prepared to handle 0 or 1 arguments. (It's easy enough to ignore extra arguments, so I

问题 I have 2 different sized structs and I would like to have one function in which I can pass them into. However, I do not know how to define the parameter of the function to accept 2 different structs. My structs are below struct { int a; // 2 byte int b; // 2 byte int c; // 2 byte int d; // 2 byte } person1; // 8 bytes struct { int a; // 2 byte DeviceAddress b; // 8 bytes int c // 2 bytes float d; // 4 bytes } person2; // 16 bytes function print_struct(struct& ?????) { actions here.... } print

问题 How to add request.httpBody = getPostData(params: ["contactsList": ["1212121212, "5555555544"]]) in place of let parameters = getPostString(params: ["contactsList":[phNumArray]]) below is working code but how to add phNumArray in palce of individual of individual numberes to contactsList Postman output for API: working code: anyone can copy paste to see output import UIKit class TestViewController: UIViewController { var phNumArray = ["1111111111", "5555555544"] override func viewDidLoad() {

问题 Suppose I have a subroutine: subroutine foo(x, Nx) implicit none integer, intent(IN) :: x integer, intent(IN) :: Nx select case(x) case (1) write(*,*) "Minimum value" case (Nx) write(*,*) "Maximum value" case default write(*,*) "Somewhere in-between" end select end subroutine foo Suppose my driver looks like this: program main implicit none interface subroutine foo(x,Nx) integer, intent(IN) :: x integer, intent(IN) :: Nx end subroutine foo end interface integer, parameter :: Nx = 100 integer

问题 I want to mimic this behaviour of Python3.8 in Python3.7 Positional-only parameters / was the syntax introduced to indicate that some function parameters must be specified positionally and cannot be used as keyword arguments. #Python3.8 def f(a,b,/,**kwargs): print(a,b,kwargs) >>> f(1,2,**{'a':100,'b':200,'c':300}) # 1 2 {'a': 100, 'b': 200, 'c': 300} a , b are used only as positional parameters. How I do the same in Python3.7 #Python3.7 def f(a,b,**kwargs): print(a,b,kwargs) >>> f(1,2,**{'a'

问题 I am trying to pass a selected "get"-method of class A to a method in class B. I have checked out Java Pass Method as Parameter, but I was not able to adopt the interface approach to my problem in a reasonable way. I would prefer to not use java 8 (lambdas) and if possible avoid reflection as well. My feeling is, that I am looking at my problem the wrong way. Here is the specific simplified example of what I am trying to accomplish: I have a class containing some fields and get-methods: