vue中流文件下载

function getOutExcel(fileName, res) {
            let blob = new Blob([res], { type: "application/vnd.ms-excel" });
            if (window.navigator.msSaveOrOpenBlob) {
              navigator.msSaveBlob(blob, fileName);
            } else {
              var link = document.createElement("a");
              const url = window.URL || window.webkitURL || window.moxURL;
              link.href = url.createObjectURL(blob);
              link.download = fileName;
              link.click();
              url.revokeObjectURL(link.href);
            }
          }

          getOutExcel("文件名称", res);