js导出Excel

static downLoad(data, fname = "下载", suffix = ".xls") {
        const content = data;
        const blob = new Blob([content]);
        const fileName = fname + '-' + moment().format('YYYYMMDDHHmmss') + suffix;
        if ('download' in document.createElement('a')) { // 非IE下载
            const elink = document.createElement('a');
            elink.download = fileName;
            elink.style.display = 'none';
            elink.href = URL.createObjectURL(blob);
            document.body.appendChild(elink);
            elink.click();
            URL.revokeObjectURL(elink.href);// 释放URL 对象
            document.body.removeChild(elink);
        } else { // IE10+下载
            navigator.msSaveBlob(blob, fileName);
        }
    }
  static downLoad(data, fileName) {
        const content = data;
        const blob = new Blob([content]);
        if ('download' in document.createElement('a')) { // 非IE下载
            const elink = document.createElement('a');
            elink.download = fileName;
            elink.style.display = 'none';
            elink.href = URL.createObjectURL(blob);
            document.body.appendChild(elink);
            elink.click();
            URL.revokeObjectURL(elink.href);// 释放URL 对象
            document.body.removeChild(elink);
        } else { // IE10+下载
            navigator.msSaveBlob(blob, fileName);
        }
    }

	//调用：
	//文件名称-后台传的
	let fileName = res.headers['content-disposition'].split(";")[1].split("filename=")[1];
	fileName = decodeURIComponent(fileName);
	downLoad(res.data, fileName );