使用MatTabNav部分的_selectedIndex更改事件，并添加一个小延迟以解决切换太快的问题。

HTML模板：

组件：

import { Component, ViewChild } from '@angular/core';
import { MatTabGroup } from '@angular/material';
import { Observable, of } from 'rxjs';
import { delay } from 'rxjs/operators';

@Component({
  selector: 'my-app',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})
export class AppComponent {
  @ViewChild('matTabs') matTabs: MatTabGroup;
  tabs = ['Tab 1', 'Tab 2', 'Tab 3'];

  onTabChange(event: any) {
    // ...your code
  }

  onSelectedIndexChange(event: any) {
    // Add a little delay to avoid tab toggling
    const observable: Observable = of(event).pipe(delay(50));
    observable.subscribe(() => {
      this.matTabs.selectedIndex = event.index;
    });
  }
}