先进入相应的标准预览页面，然后f12打开控制台，复制以下代码粘贴到控制台，然后回车即可。

function downloadPdfFile() {
  const downloadURL = (data, fileName) => {
    const a = document.createElement('a')
    a.href = data
    a.download = fileName
    document.body.appendChild(a)
    a.style.display = 'none'
    a.click()
    a.remove()
  }
  const downloadBlob = (data, fileName, mimeType) => {
    const blob = new Blob([data], { type: mimeType })
    const url = window.URL.createObjectURL(blob)
    downloadURL(url, fileName)
    setTimeout(() => window.URL.revokeObjectURL(url), 1000)
  }
  console.log('---获取数据中...')
  fetch('http://biaozhun.osta.org.cn/api/v1/profession/detail', {
    method: 'POST',
    cache: 'no-cache',
    body: window.location.href.match(/(?<=\?)code\=\d+$/g)[0],
    headers: {
      'content-type': 'application/x-www-form-urlencoded; charset=UTF-8'
    }
  }).then(function (response) {
    return response.json()
  }).then(function (res) {
    console.log('---数据获取成功...')
    console.log('---生成下载中...')
    const pdfData = base64ToUint8Array(res.data)
    downloadBlob(pdfData, getQueryVariable('code')+'.pdf', 'application/octet-stream')
  }).catch(function (error) {
    console.error(error)
  })
}
downloadPdfFile()