fix: 空数据时给空表格

src/utils/execl-utils.ts

@@ -21,8 +21,8 @@ export const xlsxUrl = `${
  */
 export async function readLoalXlsx(id: string): Promise<Record<string, any>[]> {
   let fileBolb = await (await fetch(`${xlsxUrl}/${id}.xlsx`)).arrayBuffer();
-  if(!fileBolb.byteLength){
-     fileBolb = await (await fetch(`${xlsxUrl}/all.xlsx`)).arrayBuffer();
+  if (!fileBolb.byteLength) {
+    fileBolb = await (await fetch(`${xlsxUrl}/all.xlsx`)).arrayBuffer();
   }
   return readSheet(fileBolb, 0);
 }
@@ -54,6 +54,9 @@ export async function readSheet(
  *
  */
 export async function writeSheet(data: any[], sheetName: string) {
+  if (data.length === 0) {
+    return new Blob([], { type: 'application/octet-stream' });
+  }
   const workSheet = utils.json_to_sheet(data);
   // 设置列宽度，单位厘米
   workSheet['!cols'] = Object.keys(data[0]).map(() => {