c++ - .dll 与带有导出的 .dll，有什么区别？

Question

在 Visual Studio 2019 上创建新项目显示以下内容:

• 动态链接库 (DLL)
• 带导出功能的动态链接库 (DLL)

在我之前，我们有静态库和动态库。

那么有什么区别呢？

我们在使用cmake时也有这种选项吗？

Answer 1

也许这有帮助:https://edwardhalferty.com/2020/08/29/difference-between-dynamic-link-library-with-exports-and-dynamic-link-library-in-visual-studio/

提取基本信息:

The major difference between them is, “with exports” adds some defines:

#define DLL1_API __declspec(dllexport)
#define DLL1_API __declspec(dllimport)

And it adds some example exports, so you can see how they work:

// This is an example of an exported variable
DLL1_API int nDll1=0;

// This is an example of an exported function.
DLL1_API int fnDll1(void)
{
    return 0;
}

// This is the constructor of a class that has been exported.
CDll1::CDll1()
{
    return;
}

In theory, you can compile this DLL and test it out immediately.