4.事件

4-1点击事件

A.app.component.html

<div (click)="handleClick()">{{title}}</div>

B.app.component.ts

import { Component } from '@angular/core';
@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})
export class AppComponent {
  title = 'my-app';
  handleClick():void{
    console.log("click");
  }
}

4-2通过事件获取state中的数据

A.app.component.ts

...
export class AppComponent {
  title = 'my-app';
  handleClick():void{
    console.log("click");
    console.log(this.title);
  }
}

4-3通过事件改变state中的数据

A.app.component.ts

...
export class AppComponent {
  title = 'my-app';
  handleClick():void{
    console.log("click");
    console.log(this.title);
  }
}