谁能帮我解释一下？谢谢！

<%
Dim m_Conn
Function Conn()
if IsEmpty(m_Conn) then
Set m_Conn=Server.CreateObject("ADODB.Connection")
dbpath=Server.MapPath("data/1993xzpat2004madeinchinafor221004.mdb")
m_Conn.open "driver={Microsoft Access Driver (*.mdb)}; dbq=" & DBPath
end if
set Conn = m_Conn
End Function
%>