从dll导入显式实例化的模板类

// MyTemplate.h
#pragma once

template<typename T>
class MyTemplate
{
public:
    void DoSomething(T value);
};

// MyTemplate.cpp
#include "MyTemplate.h"

template<typename T>
void MyTemplate<T>::DoSomething(T value)
{
    // Implementation
}

// MyTemplate.cpp
#include "MyTemplate.h"

template class MyTemplate<int>;
template class MyTemplate<float>;

// MyTemplate.h
#pragma once

template<typename T>
class MyTemplate
{
public:
    void DoSomething(T value);
};

// MyTemplate.cpp
#include "MyTemplate.h"

template<typename T>
void MyTemplate<T>::DoSomething(T value)
{
    // Implementation
}

// Export the instantiated templates
template class __declspec(dllexport) MyTemplate<int>;
template class __declspec(dllexport) MyTemplate<float>;

// Main.cpp
#include "MyTemplate.h"

// Import the instantiated templates
template class __declspec(dllimport) MyTemplate<int>;
template class __declspec(dllimport) MyTemplate<float>;

int main()
{
    MyTemplate<int> intTemplate;
    MyTemplate<float> floatTemplate;

    intTemplate.DoSomething(1);
    floatTemplate.DoSomething(2.0f);

    return 0;
}