fecth用法实现下载```js fetch(`http://172.30.32.7:49090/admin-api/q

  fetch(`http://172.30.32.7:49090/admin-api/quote/export/pdf?     quoteNumber=${auditData.value.quoteNumber}`, {
    //   method: 'get',
    //   headers: {
    //     "Content-Type": "application/json",
    //     Authorization: 'Bearer test1'
    //   },
    // }).then((response) => response.blob()).then(res => {
    //   console.log(res ,'application/vnd.ms-excel') 
    //   const blob = new Blob([res], { type: "application/pdf" })
    //   const url = URL.createObjectURL(blob)
    // fetch 实现下载！！！