HarmonyOS Text组件里的文本内容设置渐变色

可参考如下demo

@Entry
@Component
struct Page11111 {
  @State message: string = 'Hello World';

  build() {
    Row() {
      Text(this.message)
        .fontSize(50)
        .fontWeight(FontWeight.Bold)
        .blendMode(BlendMode.DST_IN, BlendApplyType.OFFSCREEN)
    }
    .linearGradient({
      direction: GradientDirection.Right,
      colors: [[0xff0000, 0.0], [0x0000ff, 0.3], [0xffff00, 1.0]]
    })
    .blendMode(BlendMode.SRC_OVER, BlendApplyType.OFFSCREEN)
  }
}