Daemon,Jos,定时器
--> FileSystemWatcher
--> EventWaitHandle / AutoResetEvent / ManualResetEvent
--> Mutex
--> lock
--> Stopwatch
--> HttpRuntime.Cache
--> ServiceHostConnector
--> MarshalByRefObject
OnInit
OnBeforeProcess
OnProcess
OnAfterProcess
OnError
Execute
------------
JobSerice
job