32位OS和64位下同样的dll但名字不同 导入怎样解决？

Question

比如一个dll 在32位下叫abc.dll在64位下叫abc64.dll现code如下
internal const string dll_Filename = "abc.dll"[DLLImport(dll_Filename)]
function1
...
[DLLImport(dll_Filename)]
function2[DLLImport(dll_Filename)]
function3

Answer 1

using System;
using System.Runtime.InteropServices;namespace CSharpThings
{
    internal class Program
    {
        #region Delegates        public delegate void Function1();        #endregion        private static void Main(string[] args)
        {
            Function1 func = null;
            if (IntPtr.Size == 8)
            {
// 64bit machine
                func = function1_64;
            }
            else
            {
// 32 bit machine
                func = function1_32;
            }            // use func to call the underlying function1
            func();            Console.WriteLine("good");
        }        [DllImport("abc.dll", EntryPoint = "function1")]
        private static extern void function1_32();        [DllImport("abc64.dll", EntryPoint = "function1")]
        private static extern void function1_64();
    }
}

Answer 2

那是不是我在调用function1的过程中 还得判断OS，然后再选用function1_32()或function1_64()？
这样是不是太麻烦了啊，能不能让我调用函数的时候就用一个形式？