class

问题 Is this a plausible and sound way to write a class where there is a syntactic sugar @staticmethod that is used for the outside to interact with? Thanks. ###scrip1.py### import SampleClass.method1 as method1 output = method1(input_var) ###script2.py### class SampleClass(object): def __init__(self): self.var1 = 'var1' self.var2 = 'var2' @staticmethod def method1(input_var): # Syntactic Sugar method that outside uses sample_class = SampleClass() result = sample_class._method2(input_var) return

问题 I'm creating a class using java and it's a basic class to understand objects,methods etc.. anyways the class name is Student and it is supposed to assign a student ID to each newly created object. Student ID's start at 1000000 and increment by 1, so every new object should have the class assign a student ID, 10000001, 100000002 etc.. public class Student { private static long nextID=10000000; private long studentID; //etc.. public Student (String name, long studentID, int count, double total

问题 The situation: I have multiple classes that should each hold a variable with a configuration hash; a different hash for each class but the same for all instances of a class. At first, i tried like this class A def self.init config @@config = config end def config @@config end end class B < A; end class C < A; end But soon noticed that it wouldn't work that way because @@config is held in the context of A, not B or C, thus: B.init "bar" p B.new.config # => "bar" p C.new.config # => "bar" -

问题 The situation: I have multiple classes that should each hold a variable with a configuration hash; a different hash for each class but the same for all instances of a class. At first, i tried like this class A def self.init config @@config = config end def config @@config end end class B < A; end class C < A; end But soon noticed that it wouldn't work that way because @@config is held in the context of A, not B or C, thus: B.init "bar" p B.new.config # => "bar" p C.new.config # => "bar" -

问题 I have create a form with Object like Progress bar and button. I have create also public library code outside my form My question is : I want to modify the progress bar or the text button from a Sub that is written in a library (I try to pass my form as a parameter): Public Shared Sub ModifyItems(ByRef _WhichForm As Form)<br> _WhichForm.MyProgressBar1.visible = true<br> End sub<br> Unfortunately, the code Is not recognizing my progress bar name : MyProgressBar1 Is there a way to modify my

问题 I have create a form with Object like Progress bar and button. I have create also public library code outside my form My question is : I want to modify the progress bar or the text button from a Sub that is written in a library (I try to pass my form as a parameter): Public Shared Sub ModifyItems(ByRef _WhichForm As Form)<br> _WhichForm.MyProgressBar1.visible = true<br> End sub<br> Unfortunately, the code Is not recognizing my progress bar name : MyProgressBar1 Is there a way to modify my

问题 I have create a form with Object like Progress bar and button. I have create also public library code outside my form My question is : I want to modify the progress bar or the text button from a Sub that is written in a library (I try to pass my form as a parameter): Public Shared Sub ModifyItems(ByRef _WhichForm As Form)<br> _WhichForm.MyProgressBar1.visible = true<br> End sub<br> Unfortunately, the code Is not recognizing my progress bar name : MyProgressBar1 Is there a way to modify my

问题 I am having trouble with this line of code right here...why am I being prompted with this error? I am getting an error saying "Operator '|' cannot be applied to operands of type 'bool' and 'string' How do check if my residency variable is not equal to these 2 strings I have listed in the if statement? catch (ArgumentException) { if (age > 16 | age > 80) { Console.WriteLine("You can only enter states of OH or MI ad the driver's age must be between 16 and 80."); } if (residency != "OH" | "MI")

问题 I am having trouble with this line of code right here...why am I being prompted with this error? I am getting an error saying "Operator '|' cannot be applied to operands of type 'bool' and 'string' How do check if my residency variable is not equal to these 2 strings I have listed in the if statement? catch (ArgumentException) { if (age > 16 | age > 80) { Console.WriteLine("You can only enter states of OH or MI ad the driver's age must be between 16 and 80."); } if (residency != "OH" | "MI")

问题 How do I fix the error "Cannot implicitly convert type 'double' to 'int'. An explicit conversion exists (are you missing a cast?). I don't see where I am changing an int to a double. Here's the following code I am working with: namespace Chapter_9 { class Program { static void Main(string[] args) { Circle create = new Circle(); create.SetRadius(2); WriteLine("Radius = {0}", create.GetRadius()); WriteLine("Diameter = {0}", create.GetDiameter()); WriteLine("Area = {0}", create.GetArea()); } }