Update play_error.md

TouXin

2022-11-03 6e5f04b36859a34900f40b0cbec7e9aa0ff250ea

 src/main/java/com/genersoft/iot/vmp/gb28181/task/ISubscribeTask.java

@@ -2,8 +2,9 @@

import javax.sip.DialogState;

/**
 * @author lin
 */
public interface ISubscribeTask extends Runnable{
    void stop();

    DialogState getDialogState();
}