TaskPool子线程和主线程如何通信

import { taskpool } from '@kit.ArkTS'; 
 
@Concurrent 
function ConcurrentFunc(num: number): number { 
  let res: number = num * 10; 
  taskpool.Task.sendData(res); 
  return num; 
}
1.
2.
3.
4.
5.
6.
7.
8.