相关疑难解决方法(0)

请考虑以下代码(我有意将 MyPoint编写为此示例的引用类型)

public class MyPoint
{
    public int x;
    public int y;
}

它是普遍公认的(至少在C#中)当你通过引用传递时,该方法包含对被操作对象的引用,而当你通过值传递时,该方法复制被操纵的值,因此全局范围中的值是不受影响.

例:

void Replace<T>(T a, T b)
{
    a = b;
}

int a = 1;
int b = 2;

Replace<int>(a, b);

// a and b remain unaffected in global scope since a and b are value types.

这是我的问题; MyPoint是引用类型,所以我希望在相同的操作Point,以取代a与b在全球范围内.

例:

MyPoint a = new MyPoint { x = 1, y = 2 };
MyPoint b = new …

我读了什么是拳击和拆箱,有什么权衡？但无法理解一件事.假设我有一个班级:

class MyClass
{
    public int Value { get; set; }
}

我想在我的方法中获得价值:

void MyFunc(MyClass cls)
{
    int i = cls.Value;
}

作为一个放在堆中的类,我猜那个值也放在堆中了吗？因此操作

int i = cls.Value;

拆箱？或者它不是拆箱？

嗨,我正在尝试做两个对象的简单交换.我的代码是

void Main()
{
  object First = 5;
  object Second = 10;

  Swap(First, Second);
  //If I display results it displays as 
  //Value of First as 5 and Second as 10
}

private static void Swap(object First, object Second)
{
  object temp = First;
  First = Second;
  Second = temp;
}

由于对象是引用类型,因此应将其引用传递给方法,并且应该交换.为什么不发生？

在以下示例中,我对理解Java的"pass-by-value"操作有疑问:

public class Numbers {

    static int[] s_ccc = {7};
    static int[] t_ccc = {7};

    public static void calculate(int[] b, int[] c) {

        System.out.println("s_ccc[0] = " + s_ccc[0]); // 7
        System.out.println("t_ccc[0] = " + t_ccc[0]); // 7

        b[0] = b[0] + 9;  
        System.out.println("\nb[0] = " + b[0]); // 16

        c = b;
        System.out.println("c[0] = " + c[0] + "\n"); // 16
    }

    public static void main(String[] args) {

        calculate(s_ccc, t_ccc);

        System.out.println("s_ccc[0] = " + s_ccc[0]);  // 16
        System.out.println("t_ccc[0] = " …

如下代码：

Debug.LogWarning("updating scale fix, scalefactor: "+scaleFactor+" - Current scale is: "+cell.transform.localScale.x);
cell.transform.localScale.Set (scaleFactor,scaleFactor,scaleFactor);
Debug.LogWarning("Scale after fix: " + cell.transform.localScale.x);

产生以下输出：

updating scale fix, scalefactor: 0.9 - Current scale is 0.8921105
UnityEngine.Debug:LogWarning(Object)

Scale after fix: 0.8921105
UnityEngine.Debug:LogWarning(Object)

有任何想法吗？我只是假设由于这些事情是紧接着发生的，因此应该更新规模。还是在框架完成之后发生？

任何帮助表示赞赏。