如何在visual-studio和gcc-linux中导出/导入变量?

我试图在这里实现一个看似简单的事情.但是，我似乎无法正常工作.
我需要的是:从EXE访问变量，该变量位于DLL中.

Hi,
I am trying to implement a seemingly simply thing here. But, I just can''t seem to get it to work.
What I need is: Access a variable from an EXE, where the variable is located in a DLL.

//DLL:
#define __ZG_WIN32__
#ifdef __ZG_WIN32__
#define __ZG_DLL_EXPORT__ __declspec(dllexport)
#endif

#ifdef __ZG_LINUX__ //LINUX
#define __ZG_DLL_EXPORT__ extern
#endif

__ZG_DLL_EXPORT__ int ZGKillerStarter = -1;

//EXE:
#define __ZG_WIN32__
#ifdef __ZG_WIN32__
#define __ZG_DLL_IMPORT__ __declspec(dllimport)
#endif

#ifdef __ZG_LINUX__ //LINUX
#define __ZG_DLL_IMPORT__
#endif

__ZG_DLL_IMPORT__ int ZGKillerStarter;

然后，我将dll作为附加依赖项链接到了编译器中.我什至用Dependency Walker检查了变量的名称.

当我运行该程序时，ZGKillerStarter的值是其初始值-1，即使在DLL端进行更改，它也永远不会更改！ ><< br mode ="hold"/>
此外，我什至尝试使用EXPORT/IMPORT函数获取"变量的值，但是每次它都会不断返回初始值.而且，我做了同样的事情，但是使用了一个返回变量地址的函数，该函数的初始值仍然是<&lt ;;;.

Q1:我在这里想念什么?
Q2:在Linux中此代码等效吗?
Q3:我该如何做以上的反向操作！ (不是同时，只是从EXE导出变量，然后导入DLL)

注意:我需要遵循某些限制，这些限制禁止我使用函数指针.

参考: http://msdn.microsoft.com/en-us/library/8fskxacy％28v = vs.80％29.aspx [

Then, I linked the dll in the compiler as an additional dependency. I even checked the variable''s name with Dependency Walker.

When I run the program, ZGKillerStarter''s value is its initial value of -1, and never changes even when I change it on the DLL side! ><<br mode="hold" />
Furthermore, I even tried to "Get" the variable''s value using an EXPORT/IMPORT function, but it kept on returning the initial value every time. Moreover, I did the same but using a function that returns the variable''s address, still initial value ><;

Q1: What am I missing here?
Q2: What is the equivalent of this code in Linux?
Q3: How do I do the inverted action of the above!? (NOT at the same time, just exporting variables from EXE, importing to DLL)

NOTE: There are certain restrictions that I need to follow, which prohibits me from using function pointers.

reference: http://msdn.microsoft.com/en-us/library/8fskxacy%28v=vs.80%29.aspx[^]

//EXE side
__ZG_DLL_IMPORT__ int ZGKillerStarter;//first try
__ZG_DLL_IMPORT__ int ZG_getZG( /*void */);//second try
__ZG_DLL_IMPORT__ int *ZG_getZG( /*void */);//third try

int XXXXX = 0; int IIII = 9;

//DLL side
__ZG_DLL_EXPORT__ int ZG_getZG( )//second try
{
	return ZGKillerStarter;
}


__ZG_DLL_EXPORT__ int *ZG_getZG( )//third try
{
	return &ZGKillerStarter;
}
void funcX()
{
if( ZGKillerStarter < 10000 ) ZGKillerStarter += 8;
}


//EXE side
__ZG_DLL_IMPORT__ int ZGKillerStarter;//first try
__ZG_DLL_IMPORT__ int ZG_getZG( /*void */);//second try
__ZG_DLL_IMPORT__ int *ZG_getZG( /*void */);//third try

int XXXXX = 0; int IIII = 9;

//DLL side
__ZG_DLL_EXPORT__ int ZG_getZG( )//second try
{
	return ZGKillerStarter;
}


__ZG_DLL_EXPORT__ int *ZG_getZG( )//third try
{
	return &ZGKillerStarter;
}
void funcX()
{
if( ZGKillerStarter < 10000 ) ZGKillerStarter += 8;
}