//下面是代码，经过测试运行成功！
var addon = require('./build/Release/addon');

var y=addon.max(2,3);
console.log(y);

其中 dlldemo.dll 里有个 max 函数，求两个 int 整数的最大值;

#define BUILDING_NODE_EXTENSION
#include <node.h>

#include <iostream>
#include <windows.h>
#include "stdafx.h"

using namespace v8;

Handle<Value> Max(const Arguments& args) {
  HandleScope scope;

  if (args.Length() < 2) {
    ThrowException(Exception::TypeError(String::New("Wrong number of arguments")));
    return scope.Close(Undefined());
  }

  if (!args[0]->IsNumber() || !args[1]->IsNumber()) {
    ThrowException(Exception::TypeError(String::New("Wrong arguments")));
    return scope.Close(Undefined());
  }

  HINSTANCE hDLL;
  hDLL=LoadLibrary("dlldemo.dll");//加载动态链接库dlldemo.dll文件；
  typedef int(*pMax)(int a,int b);//函数指针
  pMax Max=NULL;
  Max=(pMax)GetProcAddress(hDLL,"Max");
  
  if (Max) 
  {
     int A=Max(args[0]->NumberValue(),args[1]->NumberValue());
     
    //cout<<"比较的结果为"<<A;
    Local<Number> num = Number::New(A);
    return scope.Close(num);
  }
  //Local<Number> num = Number::New(args[0]->NumberValue() +   args[1]->NumberValue());
  Local<Number> num = Number::New(123);
  return scope.Close(num);
}

void Init(Handle<Object> exports) 
{
  exports->Set(String::NewSymbol("max"),FunctionTemplate::New(Max)->GetFunction()); 
}

NODE_MODULE(addon, Init)