这确实有效，我只是使用var而不是val.

This does actually work, I was just using var instead of val.

class BackgroundSyncWorker (
    appContext: Context,
    workerParams: WorkerParameters
): Worker(appContext, workerParams), KoinComponent {

    val dataSyncRepository : DataSyncRepositoryImpl by inject()

    override fun doWork(): Result {
        return Result.success()
    }
}