<%
     ParentID=GetRs("Select ParentID From ArticleClass where ClassID="&ClassID)   
    If IsNumric(ParentID) Then
    ParentID=int(ParentID)
        TmpSql="Select ClassID,ClassName From ArticleClass where ClassID="&ParentID
      
    Else        
        ParentID=0         
        TmpSql="Select ClassID,ClassName From ArticleClass where ParentID="&ClassID   
         
    End If
    'Response.write tmpsql
    Call OpenCreateRs(TmpConn,TmpRs,TmpSql)
    Do While Not TmpRs.EOF            
%>
ClassID和ParentID都是数字类型的