网络服务监控程序，启动网络服务程序，运行该网络服务程序的两个实例，将其中的一个实例设置为监控程序，将另一个实例设置为主控程序；主控程序监测到监控程序运行异常时，关闭并重新启动运行异常的监控程序；监控程序监测到主控程序运行异常时，关闭运行异常的主控程序，将自身设置为主控程序，并重新启动运行异常的主控程序作为监控程序。-Network service monitoring program, start network services, run the two instances of network services program, which will be set to an instance of control procedures, and another instance is set to master control program　master control program monitoring to the monitoring program is run abnormal , abnormal operation shut down and restart the monitoring process　monitoring program to monitor exceptions to the master program is running, close the abnormal operation of the master control program, set to the master control program itself, and restart the exception of the master control program running as a monitoring program .