ionic2使用datetime组件默认设置当前时间

1. html源码

<ion-item>
     <ion-label>发布时间</ion-label>
     <ion-datetime displayFormat="YYYY/MM/DD HH:mm" [(ngModel)]="depositDate"  placeholder="请选择" cancelText="取消" doneText="确定" ></ion-datetime>
</ion-item>

2. ts源码

  private depositDate: any;
  constructor(
      public navCtrl: NavController,
      public navParams: NavParams,
  ) {
    this.depositDate = new Date().toISOString();
  }

3. 由于中外时差8小时，所以这里再处理一下，仅限中国地区使用

private depositDate: any;
  constructor(
      public navCtrl: NavController,
      public navParams: NavParams,
  ) {
      this.depositDate = new Date(new Date().getTime()+8*60*60*1000).toISOString();
  }