Angular set css style for : ngOnInit中的主机

import { Component, HostBinding, OnInit } from '@angular/core';

@Component({
  selector: 'app-my-component',
  template: '<div>Hello, World!</div>',
  styleUrls: ['./my-component.component.css']
})
export class MyComponentComponent implements OnInit {
  @HostBinding('style.color') color = 'red';
  @HostBinding('style.font-size') fontSize = '20px';

  ngOnInit() {
    // 在ngOnInit中可以执行其他初始化操作
    // 设置主机元素的其他样式
    this.color = 'blue';
    this.fontSize = '24px';
  }
}