Angular @ViewChild，Angular 中的 dom 操作

ngAfterViewInit(){
    var boxDom:any=document.getElementById(‘box‘);
    boxDom.style.color=‘red‘;
}

<div #myattr></div>

import { Component ,ViewChild,ElementRef} from ‘@angular/core‘;
@ViewChild(‘myattr‘,{static:true}) eleRef: ElementRef;
ngAfterViewInit(){
    let attrEl = this.eleRef.nativeElement;
}

<app-footer #footerChild></app-footer>

import { Component, OnInit ,ViewChild} from ‘@angular/core‘;

@ViewChild(‘footerChild‘,{static:true}) footer;

run(){
    this.footer.footerRun();
}

<app-header #header></app-header>

<div #myBox>
   我是一个dom节点
</div>

<button (click)="getChildRun()">获取子组件的方法</button>

import { Component, OnInit,ViewChild} from ‘@angular/core‘;

@Component({
  selector: ‘app-news‘,
  templateUrl: ‘./news.component.html‘,
  styleUrls: [‘./news.component.scss‘]
})
export class NewsComponent implements OnInit {
  //获取dom节点
  @ViewChild(‘myBox‘,{static:true}) myBox:any;
  //获取一个组件
  @ViewChild(‘header‘,{static:true}) header:any;
  constructor() { }

  ngOnInit() {
  }

  ngAfterViewInit(): void {    
    console.log(this.myBox.nativeElement);
    this.myBox.nativeElement.style.width=‘100px‘;
    this.myBox.nativeElement.style.height=‘100px‘;
    this.myBox.nativeElement.style.background=‘red‘;
    console.log(this.myBox.nativeElement.innerHTML);
  }

  getChildRun(){
    //调用子组件里面的方法
     this.header.run();
  }
}

  //获取header组件
  @ViewChild(‘header‘,{static:true}) header:any;