public class MyAutoClosableResource implements AutoCloseable {



    private String resName;

    private int counter;



    public MyAutoClosableResource(String resName) {

        this.resName = resName;

    }



    public String read() throws IOException {

        counter++;

        if (Math.random() > 0.1) {

            return "You got lucky to read from " + resName + " for " + counter + " times...";

        } else {

            throw new IOException("resource不存在哦");

        }

    }



    @Override

    public void close() throws Exception {

        System.out.println("资源释放了:" + resName);

    }

}///try是在哪里用什么方法回收资源的啊这个close就输出啊？