public ThreadPool(int poolSize) {  //poolSize ʾ̳߳еĹ̵߳

		super(threadPoolID + "");      //ָThreadGroup
		setDaemon(true);               //̳еķǷػ̳߳
		workQueue = new LinkedList();  //
		for(int i = 0; i < poolSize; i++) {
			new WorkThread(i).start();   //߳,̳߳Ƕپʹٸ߳
		}
	}