Angular中怎么导出表格Excel表格？

import { Component } from '@angular/core';

import { STColumn, XlsxService } from '@delon/abc';

@Component({

  selector: 'components-xlsx-export',

  template: `

    <button nz-button (click)="download()">Export</button>

    <!-- 为了方便使用了ng-alain表格组件，也可以用ng-zorro或者其他库实现的表格。展现是次要的，重点是数据 -->

    <st [data]="users" [ps]="3" [columns]="columns" class="mt-sm"></st>

    `,

})

export class ComponentsXlsxExportComponent {

  constructor(private xlsx: XlsxService) {}

  // 表格数据-模拟数据

  users: any[] = Array(100)

    .fill({})

    .map((_item: any, idx: number) => {

      return {

        id: idx + 1,

        name: `name ${idx + 1}`,

        age: Math.ceil(Math.random() * 10) + 20,

      };

    });

  columns: STColumn[] = [

    { title: '编号', index: 'id', type: 'checkbox' },

    { title: '姓名', index: 'name' },

    { title: '年龄', index: 'age' },

  ];

  download() {

      // 组装要导出的数据

    const data = [this.columns.map(i => i.title)];

    this.users.forEach(i =>

      data.push(this.columns.map(c => i[c.index as string])),

    );

    // 使用组件XlsxService导出数据为xls文件

    this.xlsx.export({

      filename: '自定义命名列表.xlsx',

      sheets: [

        {

          data: data,

          name: 'sheet name',

        },

      ],

    });

  }

}