C++调用C#类库生成的dll

C#类库(.NET Framework)

新建项目——>Visual C# ——>类库(.NET Framework)

C#类库代码

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Aliyun.Acs.Core;
using Aliyun.Acs.Core.Profile;
using Aliyun.Acs.Core.Exceptions;
using Aliyun.Acs.Core.Http;
using Newtonsoft.Json;


namespace AliyunSmsClassLibrary
{
    public class AliyunSms
    {
        string accessKeyId, secret;

        public AliyunSms(string accessKeyId, string secret)
        {
            this.accessKeyId = accessKeyId;
            this.secret = secret;
        }

        public void printAction()
        {
            Console.WriteLine("SendSms");
        }

        public string sendSms(string phoneNumber, string vehicleID, string Time, string location)
        { 
            IClientProfile profile = DefaultProfile.GetProfile("cn-hangzhou", accessKeyId, secret);
            DefaultAcsClient client = new DefaultAcsClient(profile);
            CommonRequest request = new CommonRequest();
            request.Method = MethodType.POST;
            request.Domain = "dysmsapi.aliyuncs.com";
            request.Version = "2017-05-25";
            request.Action = "SendSms";
            // request.Protocol = ProtocolType.HTTP;
            request.AddQueryParameters("PhoneNumbers", phoneNumber);
            request.AddQueryParameters("SignName", "中交华安");
            request.AddQueryParameters("TemplateCode", "SMS_177552111");
            request.AddQueryParameters("TemplateParam", JsonConvert.SerializeObject(new { vehicleID, Time, location }));
            try
            {
                CommonResponse response = client.GetCommonResponse(request);
                Console.WriteLine(System.Text.Encoding.Default.GetString(response.HttpResponse.Content));
                return System.Text.Encoding.Default.GetString(response.HttpResponse.Content);
            }
            catch (ServerException e)
            {
                Console.WriteLine(e);
                return e.Message;
            }
            catch (ClientException e)
            {
                Console.WriteLine(e);
                return e.Message;
            }
        }
    }
}

生成dll

在\bin\Debug\xx.dll

C++空项目

新建项目——>Visual C++ ——>空项目

公共语言运行时支持(/clr)

右键属性——>常规——>项目默认值——>公共语言运行时支持(/clr)

拷贝dll

将生成的dll文件拷贝到Debug目录下（如果是Release则拷贝到Release目录下）

C++源码

源文件——>添加——>新建项——>main.cpp

#include <string>
#include "assert.h"
#include <objbase.h>  
#include <stdio.h> 

#using "..\Debug\AliyunSmsClassLibrary.dll"

#pragma managed

using namespace AliyunSmsClassLibrary;


int main()
{
	AliyunSmsClassLibrary::AliyunSms^ aliyunSms = gcnew AliyunSmsClassLibrary::AliyunSms("xxxxxx", "xxxxxx");
	aliyunSms->printAction();
	aliyunSms->sendSms("181xxxxxxxx", "闽B666", "11月22日 17点22分", "厦门软件园二期西门");
	return 0;
}

运行

运行 ok