将数组从C++移动到C#的最简单方法,修改它,并将其传递回C++

#include<vector>
#include <msclr\marshal_cppstd.h>

using namespace System;
using namespace msclr::interop;

public ref class ArrayBridge
{
public:
    static std::vector<int>^ MoveArrayToCSharp(array<int>^ arr)
    {
        std::vector<int> vec(arr->Length);
        for (int i = 0; i < arr->Length; i++)
        {
            vec[i] = arr[i];
        }
        return marshal_as<std::vector<int>^>(vec);
    }

    static array<int>^ MoveArrayToCpp(std::vector<int> vec)
    {
        array<int>^ arr = gcnew array<int>(vec.size());
        for (int i = 0; i < vec.size(); i++)
        {
            arr[i] = vec[i];
        }
        return arr;
    }
};

using System;

namespace CSharpProject
{
    class Program
    {
        static void Main(string[] args)
        {
            int[] arr = { 1, 2, 3, 4, 5 };

            // 将数组从C++移动到C#
            std::vector<int> vec = ArrayBridge.MoveArrayToCSharp(arr);

            // 修改数组
            vec[0] = 10;

            // 将数组从C#传回C++
            arr = ArrayBridge.MoveArrayToCpp(vec);

            Console.WriteLine("Array after modification:");
            foreach (int i in arr)
            {
                Console.Write(i + " ");
            }
        }
    }
}