c++退出时调用函数使用atexit不一定有效

Question

我自己写了一个程序，要在结束时调用几个函数，上网查了说用 atexit 注册退出函数，但我发现直接叉控制台的时候他就不正常了，哪个神犇肯救我。就假设他是下面的代码：

#include<bits/stdc++.h>
#define ll long long
using namespace std;
void f(){
    system("start cmd");
}
int main(){
    ios::sync_with_stdio(0);
    atexit(f);
    while(1){}
}

Answer 1

console屏幕处理例子程序
https://download.csdn.net/download/zhao4zhong1/3461309
仅供参考：

BOOL WINAPI handler_routine(DWORD dwCtrlType)
{
  CHAR szTemp[64];

  /* print out what control event was received to the current console */
  switch(dwCtrlType)
    {
    case CTRL_C_EVENT:
      strcpy(szTemp, "CTRL_C_EVENT");
      break;
    case CTRL_BREAK_EVENT:
      strcpy(szTemp, "CTRL_BREAK_EVENT");
      break;
    case CTRL_CLOSE_EVENT:
      strcpy(szTemp, "CTRL_CLOSE_EVENT");
      break;
    case CTRL_LOGOFF_EVENT:
      strcpy(szTemp, "CTRL_LOGOFF_EVENT");
      break;
    case CTRL_SHUTDOWN_EVENT:
      strcpy(szTemp, "CTRL_SHUTDOWN_EVENT");
      break;
    default:
      strcpy(szTemp, "unknown event");
      break;
    }
  strcat(szTemp, " detected");
  myPuts(hConsole, szTemp);
  return(TRUE);
}

BOOL bSuccess = SetConsoleCtrlHandler(handler_routine, TRUE);