//main.c
#define _UNICODE
#define UNICODE
#include<windows.h>
const int BREAK_POINT1 = 0x00405120;
const int BREAK_POINT2 = 0x00401000;
const int PATCH_POSITION=0x00401004;
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
        PSTR szCmdLine, int iCmdShow)
{
 CONTEXT stCT;   //线程环境
 char buf[2]={0x0cc,0x60};
 STARTUPINFO startupinfo;
 PROCESS_INFORMATION processInfo;
 DEBUG_EVENT devent;
 GetStartupInfo(&startupinfo);
 BOOL fOk=CreateProcess(
  TEXT("D:\\masm32\\Resource\\Chapter13\\Patch2\\test.exe"),NULL,NULL,NULL,NULL,
  DEBUG_PROCESS | DEBUG_ONLY_THIS_PROCESS,NULL,NULL, &startupinfo,&processInfo);
 if(!fOk)
 {
  MessageBox(NULL,TEXT("装载文件失败."),NULL,MB_OK);
  ExitProcess(0);
 }
 while(TRUE)
 {
  WaitForDebugEvent(&devent,INFINITE);//等待调试事件
  if(devent.dwDebugEventCode==EXIT_PROCESS_DEBUG_EVENT)
   break;
  if(devent.dwDebugEventCode==CREATE_PROCESS_DEBUG_EVENT)
   WriteProcessMemory(processInfo.hProcess,(LPVOID)BREAK_POINT1,buf,1,NULL);//写入一个
   //0xCC(int 3的机器码)
  else if(devent.dwDebugEventCode==EXCEPTION_DEBUG_EVENT)
  {
   if(devent.u.Exception.ExceptionRecord.ExceptionCode==EXCEPTION_BREAKPOINT)
   {
    stCT.ContextFlags=CONTEXT_FULL;
    GetThreadContext(processInfo.hThread,&stCT);
    if(stCT.Eip==BREAK_POINT1+1)
    {
     --stCT.Eip;
     WriteProcessMemory(processInfo.hProcess,(LPVOID)BREAK_POINT1,buf+1,1,NULL);
     stCT.EFlags=stCT.EFlags|0x100;//regFlag的单步标志被置为1
     SetThreadContext(processInfo.hThread,&stCT);     
    }
    else if(devent.u.Exception.ExceptionRecord.ExceptionCode==EXCEPTION_SINGLE_STEP)
    {
     stCT.ContextFlags=CONTEXT_FULL;
     SuspendThread(processInfo.hThread);
     GetThreadContext(processInfo.hThread,&stCT);
     ResumeThread(processInfo.hThread);
     if(stCT.Eip==BREAK_POINT2)
     {
      *buf=0x90;
      *(buf+1)=0x90;
      WriteProcessMemory(processInfo.hProcess,(LPVOID)PATCH_POSITION,
           buf,1,NULL);
     }
     else
     {
      stCT.EFlags=stCT.EFlags|0x100;//regFlag的单步标志被置为1
      SuspendThread(processInfo.hThread);
      SetThreadContext(processInfo.hThread,&stCT);
      ResumeThread(processInfo.hThread);
     }
    }
   }   
  }
  else if(devent.dwDebugEventCode==LOAD_DLL_DEBUG_EVENT)
  {
   break;
  }
  else if(devent.dwDebugEventCode==EXIT_THREAD_DEBUG_EVENT)
  {
   break;
  }
  
 ContinueDebugEvent(devent.dwProcessId,devent.dwThreadId,DBG_CONTINUE);
 }
 CloseHandle(processInfo.hThread);
 CloseHandle(processInfo.hProcess);
 ExitProcess(0);
}
这是一个关于补丁的程序。要打补丁的程序是

程序的错误是在 WriteProcessMemory(processInfo.hProcess,(LPVOID)BREAK_POINT1,buf,1,NULL);//写入一个
   //0xCC(int 3的机器码)
但我不知道为什么会错。请高手指点。

我说的是逻辑错误，不是编译和链接错误。

那请帮我看一下错误的原因。

没人知道吗？

真的没人知道啊？