vue实现打印后的页面直接打印

/*
* 处理blob接口返回值或弹窗打印pdf
* */
export function getBlobResult(data) {
  const binaryData = [];
  binaryData.push(data);
  let blob = new Blob(binaryData, { type: data.type })
  //弹出打印
  console.log("data.type", data.type)
  if (data.type == "application/pdf") {
    let urlPdf = window.URL.createObjectURL(blob);
    //打印出来的页面直接调打印控件（以下三行）
    let newWindow = window.open(urlPdf, '__blank');
    newWindow.document.close();     //关闭document的输出流, 显示选定的数据
    newWindow.print();   //打印当前窗口
  } else {
    //异常返回
    const reader = new FileReader();
    reader.readAsText(blob, 'utf-8');
    reader.onloadend = function () {
      let errorMsg = reader.result.substring(9);
      Message.error(errorMsg)
    }
    return;
  }
  return "";
}