C#调用C++动态链接库(dll)的简单样例

 1         [DllImport("MyDll.dll", EntryPoint = "Add", CallingConvention = CallingConvention.Cdecl)]
 2         public static extern double Add(double a, double b);
 3         [DllImport("MyDll.dll", EntryPoint = "Sub", CallingConvention = CallingConvention.Cdecl)]
 4         public static extern double Sub(double a, double b);
 5         [DllImport("MyDll.dll", EntryPoint = "Multi", CallingConvention = CallingConvention.Cdecl)]
 6         public static extern double Multi(double a, double b);
 7         [DllImport("MyDll.dll", EntryPoint = "Divi", CallingConvention = CallingConvention.Cdecl)]
 8         public static extern double Divi(double a, double b);
 9 
10         static void Main(string[] args)
11         {
12             double a = 2;
13             double b = 3;
14 
15             Console.WriteLine(Add(a, b));
16             Console.WriteLine(Sub(a, b));
17             Console.WriteLine(Multi(a, b));
18             Console.WriteLine(Divi(a, b));
19             Console.ReadKey();
20         }