接口请求下载
onPreview: async (file: workOrderApi.workOrderAttachment) => {
console.log(file);
const downloadFile = await workOrderApi.downloadFile(file.fileNo);
const url = window.URL.createObjectURL(downloadFile as Blob);
const a = document.createElement('a');
a.href = url;
a.download = file.fileName;
a.click();
},