Fortran 入門——C#調用Fortran DLL

首先建立一個Fortran動態串連庫項目,並寫一個計算兩數之和的函數,代碼如下

1 function MySum(x,y)
2 implicit none
3 !DEC$ ATTRIBUTES DLLEXPORT :: MySum
4 !DEC$ ATTRIBUTES ALIAS:'MySum'::Mysum
5 integer x,y,MySum
6 MySum=x+y
7 end function

Realse編譯後,複製產生的DLL.

接著建立一個C#控制台項目,將剛才複製的DLL粘貼到DEBUG目錄下.然後添加代碼

 1    class Program
 2     {
 3         [DllImport("Dll1.dll", SetLastError = true, CharSet = CharSet.Unicode, CallingConvention = CallingConvention.StdCall)]
 4         public static extern int MySum(ref int x,ref int y);
 5         static void Main(string[] args)
 6         {
 7             int x = 3;
 8             int y = 4;
 9             int result = MySum(ref x, ref y);
10             Console.WriteLine(result);
11             Console.ReadKey();
12         }
13     }

 需要添加命名空間:System.Runtime.InteropServices;