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凋用动态库入门

凋用动态库
man.c 文件

#include <stdio.h>
#include <string.h>

#pragma   comment(lib,"../max/Debug/max.lib")  

// 注意这里是 dllimport
#define MAX_IMPORT __declspec(dllimport)
#define SUM_IMPORT __declspec(dllimport)
#define PLU_IMPORT __declspec(dllimport)

extern int MAX_IMPORT mymax(int a, int b);
extern int SUM_IMPORT sum(int a, int b);
extern int PLU_IMPORT plu(int a, int b);
int main()
{ 
 printf("a+b=%d\n", sum(40, 20));
 printf("a-b=%d\n", plu(40, 20 ));
    printf("Max %d\n", mymax(40, 20 ));

 return 0;
}
======================================================
man_dll.c文件

#include <stdio.h>
#include <string.h>

// 注意这里是 dllexport
#define MAX_EXPORT __declspec(dllexport)
#define SUM_EXPORT __declspec(dllexport)
#define PLU_EXPORT __declspec(dllexport)

int MAX_EXPORT mymax(int a, int b)
{
    return (a<b)? b: a;
}

int SUM_EXPORT sum(int a, int b)
{
 return (a+b);
}

int PLU_EXPORT plu(int a, int b)
{
 return (a-b);
}


======================================================

把所生成的两个文件复制到man.c 文件下

posted on 2008-01-18 09:07 向左向右走 阅读(91) 评论(0)  编辑 收藏 引用 所属分类: C/C++学习资料库