#鸿蒙学习大百科#如何设置RichEditor组件内的内容选中时部分背板高亮？

@Entry
@Component
struct Index {
  controller: RichEditorController = new RichEditorController();
  options: RichEditorOptions = { controller: this.controller };
  build() {
    Column() {
      RichEditor(this.options)
        .onReady(() => {
          this.controller.addTextSpan('点击按钮在此处选中0-2位置的文本。', {
            style: {
              fontColor: Color.Black,
              fontSize: 15
            }
          })
        })
        .width(300)
        .height(60)
      Button('setSelection(0,2)', {
        buttonStyle: ButtonStyleMode.NORMAL
      })
        .height(30)
        .fontSize(13)
        .onClick(() => {
          this.controller.setSelection(0, 2)
        })
    }
    .width('100%')
    .height('100%')
    .justifyContent(FlexAlign.Center)
  }
}