Harmony注意事项

1. 起点默认左上角
2. await必须在有async修饰的函数内
3. 行首左对齐，行尾右对齐

Column({ space: 10 }) {
    Row({ space: 20 }) {
    Text(this.leftContent)
        .fontSize(15)
        .fontColor($r('app.color.text_secondary'))
    Row() {
        Text(this.rightContent)
        .fontSize(15)
        Image($r('app.media.ic_phone')).visibility(this.isShowIcon ? Visibility.Visible : Visibility.None)
        .width(25)
        .aspectRatio(1)
    }
    }
    .width('100%')
    .justifyContent(FlexAlign.SpaceBetween)
    .alignItems(VerticalAlign.Center)
}