如何修改类函数中的变量

class MyClass:
    def __init__(self):
        self.my_variable = 10

    def modify_variable(self, new_value):
        self.my_variable = new_value

my_object = MyClass()
print(my_object.my_variable)  # 输出：10
my_object.modify_variable(20)
print(my_object.my_variable)  # 输出：20

public class MyClass {
    private int myVariable;

    public MyClass() {
        this.myVariable = 10;
    }

    public void modifyVariable(int newValue) {
        this.myVariable = newValue;
    }

    public int getVariable() {
        return this.myVariable;
    }
}

MyClass myObject = new MyClass();
System.out.println(myObject.getVariable());  // 输出：10
myObject.modifyVariable(20);
System.out.println(myObject.getVariable());  // 输出：20

public class MyClass {
    private static int myVariable = 10;

    public static void ModifyVariable(int newValue) {
        myVariable = newValue;
    }

    public static int GetVariable() {
        return myVariable;
    }
}

Console.WriteLine(MyClass.GetVariable());  // 输出：10
MyClass.ModifyVariable(20);
Console.WriteLine(MyClass.GetVariable());  // 输出：20