我用小田的LIMITPAGELIST插件作了个分页,可是源代码实在是看不明白,在答辩时恐怕过不了关,哪位大侠能帮我一下,给下面程序写点注释,让我看明白好去应付一下答辩,谢谢大家了


<%@LANGUAGE="VBSCRIPT"%>


<%
set mysql = Server.CreateObject("ADODB.Recordset")
mysql.ActiveConnection = MM_mysql_STRING
mysql.Source = "SELECT * FROM mysql ORDER BY id DESC"
mysql.CursorType = 0
mysql.CursorLocation = 2
mysql.LockType = 3
mysql.Open()
mysql_numRows = 0
%>
<%
Dim Repeat1__numRows
Repeat1__numRows = 5
Dim Repeat1__index
Repeat1__index = 0
mysql_numRows = mysql_numRows + Repeat1__numRows
%>
<%
' *** 小田工作室UD插件系列 Limit Pages List v1.0.0 (改编自PagesList)

' set the record count
mysql_total = mysql.RecordCount

' set the number of rows displayed on this page
If (mysql_numRows < 0) Then
mysql_numRows = mysql_total
Elseif (mysql_numRows = 0) Then
mysql_numRows = 1
End If

' set the first and last displayed record
mysql_first = 1
mysql_last = mysql_first + mysql_numRows - 1

' if we have the correct record count, check the other stats
If (mysql_total <> -1) Then
If (mysql_first > mysql_total) Then mysql_first = mysql_total
If (mysql_last > mysql_total) Then mysql_last = mysql_total
If (mysql_numRows > mysql_total) Then mysql_numRows = mysql_total
End If
%>
<%
' *** Recordset Stats: if we don't know the record count, manually count them

If (mysql_total = -1) Then

' count the total records by iterating through the recordset
mysql_total=0
While (Not mysql.EOF)
mysql_total = mysql_total + 1
mysql.MoveNext
Wend

' reset the cursor to the beginning
If (mysql.CursorType > 0) Then
mysql.MoveFirst
Else
mysql.Requery
End If

' set the number of rows displayed on this page
If (mysql_numRows < 0 Or mysql_numRows > mysql_total) Then
mysql_numRows = mysql_total
End If

' set the first and last displayed record
mysql_first = 1
mysql_last = mysql_first + mysql_numRows - 1
If (mysql_first > mysql_total) Then mysql_first = mysql_total
If (mysql_last > mysql_total) Then mysql_last = mysql_total

End If
%>
<%
' *** Move To Record and Go To Record: declare variables

Set MM_rs = mysql
MM_rsCount = mysql_total
MM_size = mysql_numRows
MM_uniqueCol = ""
MM_paramName = ""
MM_offset = 0
MM_atTotal = false
MM_paramIsDefined = false
If (MM_paramName <> "") Then
MM_paramIsDefined = (Request.QueryString(MM_paramName) <> "")
End If
%>
<%
' *** Move To Record: handle 'index' or 'offset' parameter

if (Not MM_paramIsDefined And MM_rsCount <> 0) then

' use index parameter if defined, otherwise use offset parameter
r = Request.QueryString("index")
If r = "" Then r = Request.QueryString("offset")
If r <> "" Then MM_offset = Int(r)

' if we have a record count, check if we are past the end of the recordset
If (MM_rsCount <> -1) Then
If (MM_offset >= MM_rsCount Or MM_offset = -1) Then ' past end or move last
If ((MM_rsCount Mod MM_size) > 0) Then ' last page not a full repeat region
MM_offset = MM_rsCount - (MM_rsCount Mod MM_size)
Else
MM_offset = MM_rsCount - MM_size
End If
End If
End If

' move the cursor to the selected record
i = 0
While ((Not MM_rs.EOF) And (i < MM_offset Or MM_offset = -1))
MM_rs.MoveNext
i = i + 1
Wend
If (MM_rs.EOF) Then MM_offset = i ' set MM_offset to the last possible record

End If
%>
<%
' *** Move To Record: if we dont know the record count, check the display range

If (MM_rsCount = -1) Then

' walk to the end of the display range for this page
i = MM_offset
While (Not MM_rs.EOF And (MM_size < 0 Or i < MM_offset + MM_size))
MM_rs.MoveNext
i = i + 1
Wend

' if we walked off the end of the recordset, set MM_rsCount and MM_size
If (MM_rs.EOF) Then
MM_rsCount = i
If (MM_size < 0 Or MM_size > MM_rsCount) Then MM_size = MM_rsCount
End If

' if we walked off the end, set the offset based on page size
If (MM_rs.EOF And Not MM_paramIsDefined) Then
If (MM_offset > MM_rsCount - MM_size Or MM_offset = -1) Then
If ((MM_rsCount Mod MM_size) > 0) Then
MM_offset = MM_rsCount - (MM_rsCount Mod MM_size)
Else
MM_offset = MM_rsCount - MM_size
End If
End If
End If

' reset the cursor to the beginning
If (MM_rs.CursorType > 0) Then
MM_rs.MoveFirst
Else
MM_rs.Requery
End If

' move the cursor to the selected record
i = 0
While (Not MM_rs.EOF And i < MM_offset)
MM_rs.MoveNext
i = i + 1
Wend
End If
%>
<%
' *** Move To Record: update recordset stats

' set the first and last displayed record
mysql_first = MM_offset + 1
mysql_last = MM_offset + MM_size
If (MM_rsCount <> -1) Then
If (mysql_first > MM_rsCount) Then mysql_first = MM_rsCount
If (mysql_last > MM_rsCount) Then mysql_last = MM_rsCount
End If

' set the boolean used by hide region to check if we are on the last record
MM_atTotal = (MM_rsCount <> -1 And MM_offset + MM_size >= MM_rsCount)
%>
<%
' *** Go To Record and Move To Record: create strings for maintaining URL and Form parameters

' create the list of parameters which should not be maintained
MM_removeList = "&index=&god="
If (MM_paramName <> "") Then MM_removeList = MM_removeList & "&" & MM_paramName & "="
MM_keepURL="":MM_keepForm="":MM_keepBoth="":MM_keepNone=""

' add the URL parameters to the MM_keepURL string
For Each Item In Request.QueryString
NextItem = "&" & Item & "="
If (InStr(1,MM_removeList,NextItem,1) = 0) Then
MM_keepURL = MM_keepURL & NextItem & Server.URLencode(Request.QueryString(Item))
End If
Next

' add the Form variables to the MM_keepForm string
For Each Item In Request.Form
NextItem = "&" & Item & "="
If (InStr(1,MM_removeList,NextItem,1) = 0) Then
MM_keepForm = MM_keepForm & NextItem & Server.URLencode(Request.Form(Item))
End If
Next

' create the Form + URL string and remove the intial '&' from each of the strings
MM_keepBoth = MM_keepURL & MM_keepForm
if (MM_keepBoth <> "") Then MM_keepBoth = Right(MM_keepBoth, Len(MM_keepBoth) - 1)
if (MM_keepURL <> "") Then MM_keepURL = Right(MM_keepURL, Len(MM_keepURL) - 1)
if (MM_keepForm <> "") Then MM_keepForm = Right(MM_keepForm, Len(MM_keepForm) - 1)

' a utility function used for adding additional parameters to these strings
Function MM_joinChar(firstItem)
If (firstItem <> "") Then
MM_joinChar = "&"
Else
MM_joinChar = ""
End If
End Function
%>
<%
' *** Move To Record: set the strings for the first, last, next, and previous links

MM_keepMove = MM_keepBoth
MM_moveParam = "index"

' if the page has a repeated region, remove 'offset' from the maintained parameters
If (MM_size > 0) Then
MM_moveParam = "offset"
If (MM_keepMove <> "") Then
params = Split(MM_keepMove, "&")
MM_keepMove = ""
For i = 0 To UBound(params)
nextItem = Left(params(i), InStr(params(i),"=") - 1)
If (StrComp(nextItem,MM_moveParam,1) <> 0) Then
MM_keepMove = MM_keepMove & "&" & params(i)
End If
Next
If (MM_keepMove <> "") Then
MM_keepMove = Right(MM_keepMove, Len(MM_keepMove) - 1)
End If
End If
End If

' set the strings for the move to links
If (MM_keepMove <> "") Then MM_keepMove = MM_keepMove & "&"
urlStr = Request.ServerVariables("URL") & "?" & MM_keepMove & MM_moveParam & "="
MM_moveFirst = urlStr & "0"
MM_moveLast = urlStr & "-1"
MM_moveNext = urlStr & Cstr(MM_offset + MM_size)
prev = MM_offset - MM_size
If (prev < 0) Then prev = 0
MM_movePrev = urlStr & Cstr(prev)
%>

　

 

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<%
mysql.Close()
%>