如题
@async 主线程 获取@async声明的返回值，主线程会等待@async函数执行结束吗？

{
       texst t = new texst();
		int a = t.ax();
		System.out.println( a );
	}
	
	@Async
	public int ax(){
		try {
			Thread.sleep( 1000 );
		} catch (InterruptedException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		System.out.println( "sub" );
		return 100;
	}