FSO一些有用的代码

使用FSO修改文件特定内容的函数
function FSOchange(filename,Target,String)
Dim objFSO,objCountFile,FiletempData
Set objFSO = Server.CreateObject("Scripting.FileSystemObject")
Set objCountFile = objFSO.OpenTextFile(Server.MapPath(filename),1,True)
FiletempData = objCountFile.ReadAll
objCountFile.Close
FiletempData=Replace(FiletempData,Target,String)
Set objCountFile=objFSO.CreateTextFile(Server.MapPath(filename),True)
objCountFile.Write FiletempData
objCountFile.Close
Set objCountFile=Nothing
Set objFSO = Nothing
End Function


使用FSO读取文件内容的函数
function FSOFileRead(filename)
Dim objFSO,objCountFile,FiletempData
Set objFSO = Server.CreateObject("Scripting.FileSystemObject")
Set objCountFile = objFSO.OpenTextFile(Server.MapPath(filename),1,True)
FSOFileRead = objCountFile.ReadAll
objCountFile.Close
Set objCountFile=Nothing
Set objFSO = Nothing
End Function


使用FSO读取文件某一行的函数
function FSOlinedit(filename,lineNum)
if linenum < 1 then exit function
dim fso,f,temparray,tempcnt
set fso = server.CreateObject("scripting.filesystemobject")
if not fso.fileExists(server.mappath(filename)) then exit function
set f = fso.opentextfile(server.mappath(filename),1)
if not f.AtEndofStream then
tempcnt = f.readall
f.close
set f = nothing
temparray = split(tempcnt,chr(13)&chr(10))
if lineNum>ubound(temparray)+1 then
exit function
else
FSOlinedit = temparray(lineNum-1)
end if
end if
end function


使用FSO写文件某一行的函数
function FSOlinewrite(filename,lineNum,Linecontent)
if linenum < 1 then exit function
dim fso,f,temparray,tempCnt
set fso = server.CreateObject("scripting.filesystemobject")
if not fso.fileExists(server.mappath(filename)) then exit function
set f = fso.opentextfile(server.mappath(filename),1)
if not f.AtEndofStream then
tempcnt = f.readall
f.close
temparray = split(tempcnt,chr(13)&chr(10))
if lineNum>ubound(temparray)+1 then
exit function
else
temparray(lineNum-1) = lineContent
end if
tempcnt = join(temparray,chr(13)&chr(10))
set f = fso.createtextfile(server.mappath(filename),true)
f.write tempcnt
end if
f.close
set f = nothing
end function


使用FSO添加文件新行的函数
function FSOappline(filename,Linecontent)
dim fso,f
set fso = server.CreateObject("scripting.filesystemobject")
if not fso.fileExists(server.mappath(filename)) then exit function
set f = fso.opentextfile(server.mappath(filename),8,1)
f.write chr(13)&chr(10)&Linecontent
f.close
set f = nothing
end function


读文件最后一行的函数
function FSOlastline(filename)
dim fso,f,temparray,tempcnt
set fso = server.CreateObject("scripting.filesystemobject")
if not fso.fileExists(server.mappath(filename)) then exit function
set f = fso.opentextfile(server.mappath(filename),1)
if not f.AtEndofStream then
tempcnt = f.readall
f.close
set f = nothing
temparray = split(tempcnt,chr(13)&chr(10))
FSOlastline = temparray(ubound(temparray))
end if
end function

FSO替换指定文件的字符
程序代码：

'FSO替换指定文件的字符
Function FSOLineEdit(filename,Target,String)
Dim objFSO,objCountFile,FiletempData
Set objFSO = Server.CreateObject("Scripting.FileSystemObject")
Set objCountFile = objFSO.OpenTextFile(Server.MapPath(filename),1,True)
FiletempData = objCountFile.ReadAll
objCountFile.Close
FiletempData = Replace(FiletempData,Target,String)
Set objCountFile = objFSO.CreateTextFile(Server.MapPath(filename),True)
objCountFile.Write FiletempData
objCountFile.Close
Set objCountFile = Nothing
Set objFSO = Nothing
End Function
'Response.Write FSOLineEdit("test.txt","世界","明天是一个好天去")


删除文件
程序代码：

'删除文件
Function DelFile(Filename)
If Filename <> "" Then
Set FSO = Server.CreateObject("Scripting.FileSystemObject")
If FSO.FileExists(Filename) Then
FSO.DeleteFile Filename
End If
Set FSO = Nothing
End If
End Function


判断文件是否存在
程序代码：

'判断文件是否存在
Function ReportFileStatus(filespec)
Dim FSO,msg

filespec = Server.MapPath("文件路径")
Set FSO = CreateObject("Scripting.FileSystemObject")
If (FSO.FileExists(filespec)) Then
msg = filespec & " exists."
Else
msg = filespec & " doesn't exist."
End If
ReportFileStatus = msg
End Function



使用FSO修改文件特定内容的函数
程序代码：

'使用FSO修改文件特定内容的函数
Function FSOchange(filename,Target,String)
Dim objFSO,objCountFile,FiletempData
Set objFSO = Server.CreateObject("Scripting.FileSystemObject")
Set objCountFile = objFSO.OpenTextFile(Server.MapPath(filename),1,True)
FiletempData = objCountFile.ReadAll
objCountFile.Close
FiletempData = Replace(FiletempData,Target,String)
Set objCountFile = objFSO.CreateTextFile(Server.MapPath(filename),True)
objCountFile.Write FiletempData
objCountFile.Close
Set objCountFile = Nothing
Set objFSO = Nothing
End Function

使用FSO写文件某一行的函数
程序代码：

'使用FSO写文件某一行的函数
Function FSOlinewrite(filename,lineNum,Linecontent)
If linenum < 1 Then Exit Function
Dim FSO,f,temparray,tempCnt
Set FSO = Server.CreateObject("Scripting.FileSystemObject")
If Not FSO.FileExists(Server.MapPath(filename)) Then Exit Function
Set f = FSO.OpenTextFile(Server.MapPath(filename),1)
If Not f.AtEndofStream Then
tempcnt = f.ReadAll
f.Close
temparray = Split(tempcnt,Chr(13)&Chr(10))
If lineNum>UBound(temparray)+1 Then
Exit Function
Else
temparray(lineNum-1) = lineContent
End If
tempcnt = jo& #105;n(temparray,Chr(13)&Chr(10))
Set f = FSO.cr& #101;atetextfile(Server.MapPath(filename),true)
f.Write tempcnt
End If
f.Close
Set f = Nothing
End Function


建立目录的程序，如果有多级目录，则一级一级的创建
程序代码：
'建立目录的程序，如果有多级目录，则一级一级的创建
Function CreateDIR(ByVal LocalPath)
On Error Resume Next
LocalPath = Replace(LocalPath,"\","/")
Set FileObject = Server.CreateObject("Scripting.FileSystemObject")
patharr = Split(LocalPath,"/")
path_level = UBound(patharr)
For i = 0 to path_level
If i=0 Then pathtmp=patharr(0) & "/" Else pathtmp = pathtmp & patharr(i) & "/"
cpath = Left(pathtmp,Len(pathtmp)-1)
If Not FileObject.FolderExists(cpath) Then FileObject.CreateFolder cpath
Next
Set FileObject = Nothing
If Err.Number <> 0 Then
CreateDIR = False
Err.Clear
Else
CreateDIR = True
End If
End Function


下面列举一下这些不常用但是却非常酷的功能：
很少被了解的FSO功能
GetSpecialFolder Method 返回特定的Windows文件夹的路径: Windows安装目录；Windows系统目录；Windows临时目录 FSO.GetSpecialFolder([0, 1, or 2])　
GetTempName Method 返回一个随机产生的文件或者目录名字，用于需要存储临时数据时
GetAbsolutePathName Method 返回文件夹的绝对路径(类似于Server.MapPath)。
比如，FSO.GetAbsolutePathName("region") 将返回类似于下面的结果："c:mydocsmyfolder egion"
GetExtensionName Method 返回路径中最后部分的扩展名
(比如：FSO.GetExtensionName("c:docs est.txt") 将返回txt)
GetBaseName and GetParentFolder Methods 返回路径中最后部分的父文件夹
(比如：FSO.GetParentFolder ("c:docsmydocs") 将返回'docs')
Drives Property 返回所有本地可用驱动器的集合，用于建立资源浏览器样的用户接口。

使用上面的功能时，最好建立好出错处理的代码。因为如果需要的参数不存在，将会产生麻烦的信息。