/**
  * 删除投票
  */
 private function _voteDel()
 {
     $this->_modelVote = $this->_getGlobalData('Model_Vote', 'object');
     if ($this->_modelVote->delById($_POST['ids'])) {
         $this->_utilMsg->showMsg(false);
     } else {
         $this->_utilMsg->showMsg('删除失败', -2);
     }
 }