C#Struct使用技巧？

public struct Point
{
    public int X;
    public int Y;
}

Point point;
point.X = 10;
point.Y = 20;

public struct Point
{
    public int X;
    public int Y;

    public Point(int x, int y)
    {
        X = x;
        Y = y;
    }
}

Point point = new Point(10, 20);

public struct Point
{
    public int X;
    public int Y;
}

public static void Swap(ref Point a, ref Point b)
{
    Point temp = a;
    a = b;
    b = temp;
}

Point point1 = new Point { X = 10, Y = 20 };
Point point2 = new Point { X = 30, Y = 40 };
Swap(ref point1, ref point2);

public struct Point
{
    public int X;
    public int Y;
}

public static void Print(in Point point)
{
    Console.WriteLine($"X: {point.X}, Y: {point.Y}");
}

Point point = new Point { X = 10, Y = 20 };
Print(point);

public readonly struct Point
{
    public int X { get; }
    public int Y { get; }

    public Point(int x, int y)
    {
        X = x;
        Y = y;
    }
}

Point point = new Point(10, 20);

using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential)]
public struct Point
{
    public int X;
    public int Y;
}

using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential)]
public struct Point
{
    public int X;
    public int Y;
}

Point point = new Point { X = 10, Y = 20 };
IntPtr ptr = Marshal.AllocHGlobal(Marshal.SizeOf(point));
Marshal.StructureToPtr(point, ptr, false);
Point newPoint = (Point)Marshal.PtrToStructure(ptr, typeof(Point));
Marshal.FreeHGlobal(ptr);