Angular:如何向注入服务发送字符串？

import { Component } from '@angular/core';
import { MyService } from './my-service';

@Component({
  selector: 'app-my-component',
  templateUrl: './my-component.html',
  styleUrls: ['./my-component.css']
})
export class MyComponent {
  constructor(private myService: MyService) {}

  sendMessage(message: string) {
    this.myService.sendMessage(message);
  }
}

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

@Injectable()
export class MyService {
  sendMessage(message: string) {
    // 在这里处理接收到的字符串
    console.log('接收到的字符串：', message);
  }
}

<input type="text" [(ngModel)]="message">
<button (click)="sendMessage(message)">发送</button>