如何以pdf格式列印及下载mat-table

import { Component, ViewChild } from '@angular/core';
import { MatTableDataSource } from '@angular/material/table';
import * as jsPDF from 'jspdf';

@Component({
  selector: 'app-table',
  templateUrl: './table.component.html',
  styleUrls: ['./table.component.css']
})
export class TableComponent {
  displayedColumns: string[] = ['position', 'name', 'weight', 'symbol'];
  dataSource = new MatTableDataSource<Element>(ELEMENT_DATA);

  @ViewChild('table') table: any;

  generatePDF() {
    const doc = new jsPDF();
    const tableData = this.dataSource.data.map((row: any) => [row.position, row.name, row.weight, row.symbol]);

    doc.autoTable({
      head: [['Position', 'Name', 'Weight', 'Symbol']],
      body: tableData
    });

    doc.save('table.pdf');
  }
}

const ELEMENT_DATA: Element[] = [
  { position: 1, name: 'Hydrogen', weight: 1.0079, symbol: 'H' },
  { position: 2, name: 'Helium', weight: 4.0026, symbol: 'He' },
  { position: 3, name: 'Lithium', weight: 6.941, symbol: 'Li' },
  { position: 4, name: 'Beryllium', weight: 9.0122, symbol: 'Be' },
  { position: 5, name: 'Boron', weight: 10.81, symbol: 'B' }
];