BOOL CALLBACK EnumChildProc(
  HWND hwnd,      // handle to child window
  LPARAM lParam   // application-defined value
);FXHD=FindWindowEx(NULL,NULL,"WindowsForms10.Window.8.app.0.297b065",NULL);  //这个可以找得到句柄
FXSEND=FindWindowEx(FXHD,NULL,"WindowsForms10.EDIT.app.0.297b065","");     //这个无论如何找不到
EnumChildWindows(FXHD,EnumChildProc,NULL);
BOOL CALLBACK EnumChildProc(HWND hwnd,LPARAM lParam)
{
      FXSEND=FindWindowEx(FXHD,NULL,"WindowsForms10.EDIT.app.0.297b065",""); //这个无论如何找不到
  if(FXSEND)
  {
  return FALSE;
  }
  else
  {
  return TRUE;
  }
}