ASP Online Headcount Statistics application

Many beginners have asked the number of online statistics how to do? In fact, a lot of methods, useful database, a lot of BBS are using Database plus cookie+session to verify, but we only do simple statistics in the ASP there is a application global variable, this very good to do, OK, let's take a look at a simple example.

<script language= "VBScript" runat= "Server" >
Sub Application_OnStart
Application. Lock ()
Application ("online") =0
Application. UnLock ()
End Sub
Sub Application_OnEnd
Application. Lock ()
Application ("online") =0
Application. UnLock ()
End Sub
Sub Session_OnStart
Application ("Online") =application ("online") +1
End Sub
Sub Session_OnEnd
Application ("Online") =application ("online")-1
End Sub
</script>

This phase we want to display in the page <%=application ("online")%> OK.

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