如果您想通过名字排序,那将是非常简单的,但是假如你想通过文件大小或者文件创立时间等等来排序的时候,那么将有点麻烦。我们将通过二维数组做到这一点。
下面的代码演示了如何通过选择排序方式达到的我们目的,单击排序,点两次就反着排了。
HTML
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TITLE文件排序演示/TITLE
/HEAD
BODY
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' 设定一个演示目录,:)
CONST DIRECTORY = "/"
' 用常数定义排序方式
CONST FILE_NAME = 0 '按照名字排序……依次类推
CONST FILE_EXT = 1
CONST FILE_TYPE = 2
CONST FILE_SIZE = 3
CONST FILE_CREATED = 4
CONST FILE_MODIFIED = 5
CONST FILE_ACCESSED = 6
'获得 排序命令,默认为按照名字排序
req = Request("sortBy")
If Len(req) 1 Then sortBy = 0 Else sortBy = CInt(req)
req = Request("priorSort")
If Len(req) 1 Then priorSort = -1 Else priorSort = CInt(req)
'设置倒序
If sortBy = priorSort Then
reverse = true
priorSort = -1
Else
reverse = false
priorSort = sortBy
End If
' 接下来开始我们真正的代码了。。。
path = Server.MapPath(DIRECTORY)
Set fso = CreateObject("Scripting.FileSystemObject")
Set theCurrentFolder = fso.GetFolder(path)
Set curFiles = theCurrentFolder.Files
' 给这些文件做一个循环
Dim theFiles()
ReDim theFiles(500) ' 我随便定的一个大小
currentSlot = -1 ' start before first slot
' 我们将文件的所有相关信息放到数组里面
For Each fileItem in curFiles
fname = fileItem.Name
fext = InStrRev(fname, ".")
If fext 1 Then fext = "" Else fext = Mid(fname,fext+1)
ftype = fileItem.Type
fsize = fileItem.Size
fcreate = fileItem.DateCreated
fmod = fileItem.DateLastModified
faccess = fileItem.DateLastAccessed
currentSlot = currentSlot + 1
If currentSlot UBound(theFiles) Then
ReDim Preserve theFiles(currentSlot + 99)
End If
' 放到数组里
theFiles(currentSlot) = Array(fname,fext,ftype,fsize,fcreate,fmod,faccess)
Next
' 现在都在数组里了,开始下一步
fileCount = currentSlot ' 文件数量
ReDim Preserve theFiles(currentSlot)
' 排序
' (8 表示 string)
If VarType(theFiles(0)(sortBy)) = 8 Then
If reverse Then kind = 1 Else kind = 2 ' 给字符排序
Else
If reverse Then kind = 3 Else kind = 4 '数字、时间。。。
End If
For i = fileCount TO 0 Step -1
minmax = theFiles(0)(sortBy)
minmaxSlot = 0
For j = 1 To i
Select Case kind
Case 1
mark = (strComp(theFiles(j)(sortBy), minmax, vbTextCompare) 0)
Case 2
mark = (strComp(theFiles(j)(sortBy), minmax, vbTextCompare) 0)
Case 3
mark = (theFiles(j)(sortBy) minmax)
Case 4
mark = (theFiles(j)(sortBy) minmax)
End Select
If mark Then
minmax = theFiles(j)(sortBy)
minmaxSlot = j
End If
Next
If minmaxSlot i Then
temp = theFiles(minmaxSlot)
theFiles(minmaxSlot) = theFiles(i)
theFiles(i) = temp
End If
Next
' 结束
%
FORM Name="doSort" Method="Get"
INPUT Type=Hidden Name=priorSort Value="% = priorSort %"
INPUT Type=Hidden Name=sortBy Value="-1"
/FORM
SCRIPT Language="JavaScript"
function reSort(which)
{
document.doSort.sortBy.value = which;
document.doSort.submit();
}
/SCRIPT
CENTER
FONT Size="+2"
显示% = (fileCount+1) % 该目录下的文件% = path %
/FONT
P
单击排序,再点一次反向排序
P
TABLE Border=1 CellPadding=3
TR
THA HREF="javascript:reSort(0);"文件名/A/TH
THA HREF="javascript:reSort(1);"扩展名/A/TH
THA HREF="javascript:reSort(2);"类型/A/TH
THA HREF="javascript:reSort(3);"大小/A/TH
THA HREF="javascript:reSort(4);"建立时间/A/TH
THA HREF="javascript:reSort(5);"上次修改时间/A/TH
THA HREF="javascript:reSort(6);"上次存取时间/A/TH
/TR
%
For i = 0 To fileCount
Response.Write "TR" & vbNewLine
For j = 0 To UBound(theFiles(i))
Response.Write " TD" & theFiles(i)(j) & "/TD" & vbNewLine
Next
Response.Write "/TR" & vbNewLine
Next
%
/TABLE
/BODY
/HTML