动态更改MatPaginatorIntl itemsPerPageLabel

import { MatPaginatorIntl } from '@angular/material/paginator';

export class CustomPaginatorIntl extends MatPaginatorIntl {
  itemsPerPageLabel = '自定义每页显示条目数标签';
}

import { Component } from '@angular/core';
import { MatPaginatorIntl } from '@angular/material/paginator';

@Component({
  selector: 'app-your-component',
  templateUrl: './your-component.component.html',
  styleUrls: ['./your-component.component.css']
})
export class YourComponent {
  constructor(private paginatorIntl: MatPaginatorIntl) {
    this.paginatorIntl = new CustomPaginatorIntl();
  }
}

<mat-paginator [length]="totalItems" [pageSize]="pageSize" [pageSizeOptions]="pageSizeOptions" showFirstLastButtons></mat-paginator>