为了反驳Brian的主张，从leppie的答案链接中重写了代码：
using System;using System.Collections.Generic;using System.Runtime.InteropServices;namespace DynamicX86{ class Program { const uint PAGE_EXECUTE_READWRITE = 0x40; const uint MEM_COMMIT = 0x1000; [Dllimport("kernel32.dll", SetLastError = true)] static extern IntPtr VirtualAlloc(IntPtr lpAddress, uint dwSize, uint flAllocationType, uint flProtect); private delegate int IntReturner(); static void Main(string[] args) { List<byte> bodyBuilder = new List<byte>(); bodyBuilder.Add(0xb8); bodyBuilder.AddRange(BitConverter.GetBytes(42)); bodyBuilder.Add(0xc3); byte[] body = bodyBuilder.ToArray(); IntPtr buf = VirtualAlloc(IntPtr.Zero, (uint)body.Length, MEM_COMMIT, PAGE_EXECUTE_READWRITE); Marshal.Copy(body, 0, buf, body.Length); IntReturner ptr = (IntReturner)Marshal.GetDelegateForFunctionPointer(buf, typeof(IntReturner)); Console.WriteLine(ptr()); } }}
