�据
                    return response.blob().then(blob => ({blob, filename}));
                } else {
                    layer.msg('导出请求失败！', {icon: 5, shift: 6});
                    // 关闭loading框
                    layer.close(exportLoadingIndex);
                    throw new Error('导出请求失败！');
                }
            }).then(({blob, filename}) => {
                // 创建一个URL对象
                var url = window.URL.createObjectURL(blob);
          