博客

downloadFile(url, fileName){ 
        //fileurl文件地址（一般是接口返回） filename文件下载后的名字
        const x = new XMLHttpRequest()
        x.open('GET', url, true)
        x.responseType = 'blob'
        x.onload = function() {
          const url = window.URL.createObjectURL(x.response)
          const a = document.createElement('a')
          a.href = url
          a.download = fileName
          a.click()
          document.body.removeChild(a);
          // 然后移除
        }
        x.send()
      }