HarmonyOS string.json 资源字符串常量拼接问题

示例如下：

import { common } from '@kit.AbilityKit';
import { BusinessError } from '@kit.BasicServicesKit';

@Entry
@Component
struct Index {
  private context = getContext(this) as common.UIAbilityContext;
  private str:string = ""
  aboutToAppear(): void {
    try {
      this.str = this.context.resourceManager.getStringSync($r('app.string.xxx_error_message').id,10005);
    } catch (error) {
      let code = (error as BusinessError).code;
      let message = (error as BusinessError).message;
      console.error(getStringSync failed, error code: ${code}, message: ${message}.);
    }
  }
  build() {
    RelativeContainer() {
      Text(this.str)
    }
    .height('100%')
    .width('100%')
  }
}