code: public function reset()
      {
          // 写入长度为0
          $this->writeLength = 0;
          // 计算出内容
          $this->contentLength = $this->httpRequestStream->getContentLength();
          // 钩子清空
          $this->hookCompleteds = [];
          // 标记为未完成
          $this->isCompleted = false;
          // 写入临时缓冲区
          $this->writeTempBuffer = '';
      }
docs: 重置