try {

const blob = new Blob([res], {

type: `application/pdf;charset-UTF-8` // word文档为msword,pdf文档为pdf

})

if ('download' in document.createElement('a')) { // 非IE下载

const url = window.URL.createObjectURL(blob)

const aLink = document.createElement('a')

aLink.style.display = 'none'

aLink.href = url

aLink.setAttribute('download', '信息确认单')

document.body.appendChild(aLink)

aLink.click()

document.body.removeChild(aLink) // 下载完成移除元素

window.URL.revokeObjectURL(url) // 释放掉blob对象

} else { // IE10+下载

navigator.msSaveBlob(blob, '信息确认单')

}

} catch (e) {

console.error(e)

}

⚠️：responseType: blob