C# \u548c C++ \u7684\u534f\u540c\u5f00\u53d1\u662f\u73b0\u4ee3\u8f6f\u4ef6\u5de5\u7a0b\u4e2d\u7684\u5e38\u89c1\u9700\u6c42\u2014\u2014\u901a\u8fc7\u4e92\u64cd\u4f5c\u6280\u672f，\u6211\u4eec\u65e2\u80fd\u4fdd\u7559 C++ \u7684\u9ad8\u6027\u80fd\u4e0e\u786c\u4ef6\u7ea7\u63a7\u5236\u80fd\u529b，\u53c8\u80fd\u4eab\u53d7 C# \u7684\u5f00\u53d1\u6548\u7387\u548c\u5f3a\u5927\u7684\u751f\u6001\u652f\u6301\u3002\u4e0b\u9762\u4ecb\u7ecd\u56db\u79cd\u6838\u5fc3\u4e92\u64cd\u4f5c\u6280\u672f\u53ca\u5176\u4ee3\u7801\u5b9e\u73b0：<\/p>\n
\u200b\u200b\u9002\u7528\u573a\u666f\u200b\u200b：\u76f4\u63a5\u8c03\u7528\u73b0\u6709 DLL \u4e2d\u7684 C++ \u51fd\u6570<\/p>\n
\/\/ C# \u8c03\u7528\u65b9
\nusing System;
\nusing System.Runtime.InteropServices;<\/p>\n
class InteropDemo
\n{
\n \/\/ \u58f0\u660e C++ \u51fd\u6570（\u7ea6\u5b9a\u4f7f\u7528 cdecl \u8c03\u7528\u89c4\u8303）
\n [DllImport("NativeLib.dll", CallingConvention = CallingConvention.Cdecl)]
\n private static extern int AddNumbers(int a, int b);<\/p>\n
[DllImport("NativeLib.dll", CharSet = CharSet.Ansi)]
\n private static extern void PrintMessage(string text);<\/p>\n
public static void Main()
\n {
\n int sum = AddNumbers(15, 27); \/\/ \u8c03\u7528 C++ \u52a0\u6cd5\u51fd\u6570
\n Console.WriteLine($"Sum from C++: {sum}");<\/p>\n
PrintMessage("Hello from C#!"); \/\/ \u4f20\u9012\u5b57\u7b26\u4e32\u5230 C++
\n }
\n}<\/p>\n
\u5bf9\u5e94\u7684 C++ \u5b9e\u73b0 (NativeLib.cpp)：<\/p>\n
#include <iostream><\/p>\n
extern "C" __declspec(dllexport)
\nint AddNumbers(int a, int b) {
\n return a + b;
\n}<\/p>\n
extern "C" __declspec(dllexport)
\nvoid PrintMessage(const char* text) {
\n std::cout << "C++ Received: " << text << std::endl;
\n}<\/p>\n
\u5173\u952e\u6280\u672f\u70b9\u200b\u200b：<\/p>\n
\u200b\u200b\u9002\u7528\u573a\u666f\u200b\u200b：\u9700\u8981\u5728\u4e24\u79cd\u4ee3\u7801\u95f4\u8fdb\u884c\u590d\u6742\u5bf9\u8c61\u4ea4\u4e92<\/p>\n
\/\/ C++\/CLI \u5305\u88c5\u5c42 (.NET \u7a0b\u5e8f\u96c6)
\n#pragma once<\/p>\n
#include "NativeCalculator.h" \/\/ \u539f\u751f C++ \u7c7b<\/p>\n
public ref class ManagedCalculator
\n{
\npublic:
\n ManagedCalculator() : nativePtr(new NativeCalculator()) {}
\n ~ManagedCalculator() { delete nativePtr; }<\/p>\n
double Calculate(double x)
\n {
\n \/\/ \u6258\u7ba1\u4ee3\u7801\u8c03\u7528\u975e\u6258\u7ba1\u4ee3\u7801
\n return nativePtr->Compute(x);
\n }<\/p>\n
void SetCallback(Action<double>^ callback)
\n {
\n \/\/ \u975e\u6258\u7ba1\u4ee3\u7801\u56de\u8c03\u6258\u7ba1\u59d4\u6258
\n nativePtr->SetCallback(
\n gcnew NativeCallback([callback](double result) {
\n callback(result);
\n })
\n );
\n }<\/p>\n
private:
\n NativeCalculator* nativePtr;<\/p>\n
\/\/ \u975e\u6258\u7ba1\u7c7b\u5230\u59d4\u6258\u7684\u6865\u63a5
\n delegate void NativeCallback(double result);
\n NativeCallback^ managedDelegate;
\n};<\/p>\n
\u539f\u751f C++ \u7c7b (NativeCalculator.h)：<\/p>\n
\/\/ \u539f\u751f C++ \u7c7b
\nclass NativeCalculator {
\npublic:
\n using Callback = void(*)(double);<\/p>\n
void SetCallback(Callback cb) { callback = cb; }<\/p>\n
double Compute(double x) {
\n double result = x * 2.5;
\n if(callback) callback(result); \/\/ \u6267\u884c\u56de\u8c03
\n return result;
\n }<\/p>\n
private:
\n Callback callback = nullptr;
\n};<\/p>\n
C# \u8c03\u7528\u4ee3\u7801：<\/p>\n
var calc = new ManagedCalculator();
\ncalc.SetCallback(result =>
\n Console.WriteLine($"C++ callback: {result}"));<\/p>\n
double output = calc.Calculate(4.2);
\nConsole.WriteLine($"Result: {output}");<\/p>\n
\/* \u8f93\u51fa：
\n C++ callback: 10.5
\n Result: 10.5
\n*\/<\/p>\n
\u6838\u5fc3\u6280\u672f\u4f18\u52bf\u200b\u200b：<\/p>\n
\u200b\u200b\u9002\u7528\u573a\u666f\u200b\u200b：\u8c03\u7528\u73b0\u6709 COM \u7ec4\u4ef6\u6216\u66b4\u9732 .NET \u7c7b\u4e3a COM<\/p>\n
\u200b\u200b\u8c03\u7528 COM \u7ec4\u4ef6：\u200b<\/p>\n
\/\/ \u5f15\u5165 COM \u7c7b\u578b\u5e93 (\u5982 EXCEL.EXE)
\nType excelType = Type.GetTypeFromProgID("Excel.Application");
\ndynamic excel = Activator.CreateInstance(excelType);<\/p>\n
excel.Visible = true;
\ndynamic workbook = excel.Workbooks.Add();
\ndynamic sheet = workbook.ActiveSheet;
\nsheet.Cells[1, 1] = "Data from C#";<\/p>\n
Marshal.ReleaseComObject(sheet);
\nMarshal.ReleaseComObject(workbook);
\nexcel.Quit();<\/p>\n
\u66b4\u9732 .NET \u7c7b\u7ed9 COM：\u200b<\/p>\n
[ComVisible(true)]
\n[Guid("3AB1DF8C-71C1-4993-8CEF-FFDBFBB2A89E")]
\npublic interface ICalc
\n{
\n double ProcessData(double input);
\n}<\/p>\n
[ComVisible(true)]
\n[ClassInterface(ClassInterfaceType.None)]
\npublic class DataProcessor : ICalc
\n{
\n public double ProcessData(double input) =>
\n Math.Sqrt(input) * 0.87;
\n}<\/p>\n
\u5173\u952e\u6b65\u9aa4\u200b\u200b：<\/p>\n
\u200b\u200b\u9002\u7528\u573a\u666f\u200b\u200b：\u8fdb\u7a0b\u95f4\u5927\u6570\u636e\u4ea4\u6362（\u907f\u514d\u5c01\u9001\u5f00\u9500）<\/p>\n
\u200b\u200bC++ \u751f\u4ea7\u8005：\u200b<\/p>\n
#include <Windows.h><\/p>\n
HANDLE hMapFile = CreateFileMapping(
\n INVALID_HANDLE_VALUE,
\n NULL,
\n PAGE_READWRITE,
\n 0, 1024, \/\/ 1KB\u5185\u5b58\u533a
\n L"Global\\\\\\\\SharedMemory");<\/p>\n
double* data = (double*)MapViewOfFile(
\n hMapFile, FILE_MAP_WRITE, 0, 0, 1024);<\/p>\n
\/\/ \u5199\u5165\u6570\u636e
\ndata[0] = 3.1415926;
\ndata[1] = 2.71828;<\/p>\n
C# \u6d88\u8d39\u8005：<\/p>\n
using var shm = MemoryMappedFile.OpenExisting(
\n "SharedMemory", MemoryMappedFileRights.Read);
\nusing var accessor = shm.CreateViewAccessor(0, 1024);<\/p>\n
accessor.Read(0, out double pi);
\naccessor.Read(8, out double e);<\/p>\n
Console.WriteLine($"PI={pi}, E={e}");<\/p>\n
\u6027\u80fd\u5173\u952e\u200b\u200b：<\/p>\n
\u200b\u200b\u7c7b\u578b\u7cfb\u7edf\u9677\u9631\u200b\u200b：<\/p>\n
\u200b\u200b\u5185\u5b58\u7ba1\u7406\u8fb9\u754c\u200b\u200b：<\/p>\n
\/\/ P\/Invoke\u5185\u5b58\u56de\u6536\u793a\u4f8b
\n[DllImport("NativeLib.dll")]
\nprivate static extern IntPtr CreateBuffer(int size);<\/p>\n
[DllImport("NativeLib.dll")]
\nprivate static extern void FreeBuffer(IntPtr ptr);<\/p>\n<\/li>\n
\u200b\u200b\u7ebf\u7a0b\u534f\u540c\u200b\u200b：<\/p>\n
\u200b\u200b\u5f02\u5e38\u5904\u7406\u200b\u200b：<\/p>\n
\/\/ C++ \u7aef\u6355\u83b7\u6258\u7ba1\u5f02\u5e38
\ntry { \/* \u8c03\u7528.NET\u65b9\u6cd5 *\/ }
\ncatch (System::Exception^ ex) {
\n std::cerr << MarshalString(ex->Message);
\n}<\/p>\n<\/li>\n
\u901a\u8fc7\u5408\u7406\u7684\u67b6\u6784\u8bbe\u8ba1\u548c\u7cbe\u51c6\u7684\u6280\u672f\u9009\u578b，C# \u4e0e C++ \u7684\u4e92\u64cd\u4f5c\u5c06\u6210\u4e3a\u6784\u5efa\u9ad8\u6027\u80fd\u6df7\u5408\u7cfb\u7edf\u7684\u5229\u5251，\u5728\u4fdd\u6301\u5f00\u53d1\u6548\u7387\u7684\u540c\u65f6\u7a81\u7834\u7eaf\u6258\u7ba1\u73af\u5883\u7684\u6027\u80fd\u9650\u5236\u3002<\/p><\/p>\n","protected":false},"excerpt":{"rendered":"
\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb64\u6b21\u3002\u901a\u8fc7\u5408\u7406\u7684\u67b6\u6784\u8bbe\u8ba1\u548c\u7cbe\u51c6\u7684\u6280\u672f\u9009\u578b\uff0cC# \u4e0e C++ \u7684\u4e92\u64cd\u4f5c\u5c06\u6210\u4e3a\u6784\u5efa\u9ad8\u6027\u80fd\u6df7\u5408\u7cfb\u7edf\u7684\u5229\u5251\uff0c\u5728\u4fdd\u6301\u5f00\u53d1\u6548\u7387\u7684\u540c\u65f6\u7a81\u7834\u7eaf\u6258\u7ba1\u73af\u5883\u7684\u6027\u80fd\u9650\u5236\u3002<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[55,4888,190],"topic":[],"class_list":{"0":"post-50214","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"hentry","6":"category-server","7":"tag-c","9":"tag-190"},"yoast_head":"\n