Update pages/Reports.tsx

pages/Reports.tsx

@@ -7,7 +7,6 @@ import {
 import { api } from '../services/api';
 import { Loader2, Download, Filter, TrendingUp, Users, BookOpen, PieChart as PieChartIcon, Grid, BarChart2 } from 'lucide-react';
 import { Score, Student, ClassInfo, Subject } from '../types';
-import * as XLSX from 'xlsx';
 
 export const Reports: React.FC = () => {
   const [loading, setLoading] = useState(true);
@@ -159,6 +158,11 @@ export const Reports: React.FC = () => {
 
 
   const exportExcel = () => {
+    // @ts-ignore
+    if (!window.XLSX) return alert('Excel 组件未加载');
+    // @ts-ignore
+    const XLSX = window.XLSX;
+
     // Export current active tab data
     let dataToExport: any[] = [];
     if (activeTab === 'grade') dataToExport = gradeAnalysisData;