但是我对这个答案感到很头疼.我不知道这段代码发生了什么.

有人可以向我解释一下吗？

using System;
using System.Runtime.InteropServices;

delegate uint BinaryOp(uint a,uint b);

static class Program
{
    [DllImport("kernel32.dll",SetLastError = true)]
    static extern bool VirtualProtect(
        IntPtr address,IntPtr size,uint protect,out uint oldProtect);

    static void Main()
    {
        var bytes = IntPtr.Size == sizeof(int) ? //32-bit? It's slower BTW
          new byte[] {0x8B,0x44,0x24,0x04,0x0F,0xAF,0x08,0xC3}
        : new byte[] {0x0F,0xCA,0x8B,0xC1,0xC3};
        var handle = GCHandle.Alloc(bytes,GCHandleType.Pinned);
        try
        {
            uint old;
            VirtualProtect(handle.AddrOfPinnedObject(),(IntPtr)bytes.Length,0x40,out old);
            var action = (BinaryOp)Marshal.GetDelegateForFunctionPointer(
                handle.AddrOfPinnedObject(),typeof(BinaryOp));
            var temp = action(3,2); //6!
        }
        finally { handle.Free(); }
    }
}

这段代码归功于Mehrdad.