mymaths.cpp

来自「最新visualC++编程200例书籍源码包括对数据库的操作」· C++ 代码 · 共 105 行

////////////////////////////

//mymaths.cpp

//

//a maths API DLL.

//

///////////////////////////

#include<windows.h>

//Declare the DLL functions prototypes

int Summary(int);

int Factorial(int);

//////////////////////////

//DllEntryPoint():The entry point of the DLL

//

/////////////////////////

BOOL WINAPI DLLEntryPoint(HINSTANCE hDLL,DWORD dwReason,

LPVOID Reserved)

{

switch(dwReason)

{

case DLL_PROCESS_ATTACH:

{

//???????

break;

}

case DLL_PROCESS_DETACH:

{

//?????????

break;

}

}

return TRUE;

}

int Summary(int n)

{

int sum=0;

int i;

for(i=1;i<=n;i++)

{

sum+=i;

}

return sum;

}

int Factorial(int n)

{

int Fact=1;

int i;

for(i=1;i<=n;i++)

{

Fact=Fact*i;

}

return Fact;

}