‘#######以下是一個(gè)類文件，下面的注解是調(diào)用類的方法################################################
‘# 注意：如果系統(tǒng)不支持建立scripting.FileSystemObject對(duì)象，那么數(shù)據(jù)庫(kù)壓縮功能將無法使用
‘# Access 數(shù)據(jù)庫(kù)類
‘# CreateDbFile 建立一個(gè)Access 數(shù)據(jù)庫(kù)文件
‘# CompactDatabase 壓縮一個(gè)Access 數(shù)據(jù)庫(kù)文件
‘# 建立對(duì)象方法:
‘# Set a = New DatabaseTools
‘# by (蕭寒雪) s.f.
‘#########################################################################################
Class DatabaseTools
Public function CreateDBfile(byVal dbFileName,byVal DbVer,byVal SavePath)
‘建立數(shù)據(jù)庫(kù)文件
‘If DbVer is 0 Then Create Access97 dbFile
‘If DbVer is 1 Then Create Access2000 dbFile
On error resume Next
If Right(SavePath,1)<>"\" Or Right(SavePath,1)<>"/" Then SavePath = Trim(SavePath) & "\"
If Left(dbFileName,1)="\" Or Left(dbFileName,1)="/" Then dbFileName = Trim(Mid(dbFileName,2,Len(dbFileName)))
If DbExists(SavePath & dbFileName) Then
Response.Write ("對(duì)不起，該數(shù)據(jù)庫(kù)已經(jīng)存在!")
CreateDBfile = False
Else
Dim Ca
Set Ca = Server.CreateObject("ADOX.Catalog")
If Err.number<>0 Then
Response.Write ("無法建立，請(qǐng)檢查錯(cuò)誤信息
" & Err.number & "
" & Err.Description)
Err.Clear
Exit function
End If
If DbVer=0 Then
call Ca.Create("Provider=Microsoft.Jet.OLEDB.3.51;Data Source=" & SavePath & dbFileName)
Else
call Ca.Create("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & SavePath & dbFileName)
End If
Set Ca = Nothing
CreateDBfile = True
End If
End function
Public function CompactDatabase(byVal dbFileName,byVal DbVer,byVal SavePath)
‘壓縮數(shù)據(jù)庫(kù)文件
‘0 為access 97
‘1 為access 2000
On Error resume next
If Right(SavePath,1)<>"\" Or Right(SavePath,1)<>"/" Then SavePath = Trim(SavePath) & "\"
If Left(dbFileName,1)="\" Or Left(dbFileName,1)="/" Then dbFileName = Trim(Mid(dbFileName,2,Len(dbFileName)))
If DbExists(SavePath & dbFileName) Then
Response.Write ("對(duì)不起，該數(shù)據(jù)庫(kù)已經(jīng)存在!")
CompactDatabase = False
Else
Dim Cd
Set Cd =Server.CreateObject("JRO.JetEngine")
If Err.number<>0 Then
Response.Write ("無法壓縮，請(qǐng)檢查錯(cuò)誤信息
" & Err.number & "
" & Err.Description)
Err.Clear
Exit function
End If
If DbVer=0 Then
call Cd.CompactDatabase("Provider=Microsoft.Jet.OLEDB.3.51;Data Source=" & SavePath & dbFileName,"Provider=Microsoft.Jet.OLEDB.3.51;Data
Source=" & SavePath & dbFileName & ".bak.mdb;Jet OLEDB;Encrypt Database=True")
Else
call Cd.CompactDatabase("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" &
SavePath & dbFileName,"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" &
SavePath & dbFileName & ".bak.mdb;Jet OLEDB;Encrypt Database=True")
End If
‘刪除舊的數(shù)據(jù)庫(kù)文件
call DeleteFile(SavePath & dbFileName)
‘將壓縮后的數(shù)據(jù)庫(kù)文件還原
call RenameFile(SavePath & dbFileName & ".bak.mdb",SavePath & dbFileName)
Set Cd = False
CompactDatabase = True
End If
end function
Public function DbExists(byVal dbPath)
‘查找數(shù)據(jù)庫(kù)文件是否存在
On Error resume Next
Dim c
Set c = Server.CreateObject("ADODB.Connection")
c.Open "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & dbPath
If Err.number<>0 Then
Err.Clear
DbExists = false
else
DbExists = True
End If
set c = nothing
End function
Public function AppPath()
‘取當(dāng)前真實(shí)路徑
AppPath = Server.MapPath("./")
End function
Public function AppName()
‘取當(dāng)前程序名稱
AppName = Mid(Request.ServerVariables("script_NAME"),(InStrRev(Request.ServerVariables("script_NAME") ,"/",-1,1))+1,Len(Request.ServerVariables("script_NAME")))
End Function
Public function DeleteFile(filespec)
‘刪除一個(gè)文件
Dim fso
Set fso = CreateObject("scripting.FileSystemObject")
If Err.number<>0 Then
Response.Write("刪除文件發(fā)生錯(cuò)誤!請(qǐng)查看錯(cuò)誤信息
" & Err.number & "
" & Err.Description)
Err.Clear
DeleteFile = False
End If
call fso.DeleteFile(filespec)
Set fso = Nothing
DeleteFile = True
End function
Public function RenameFile(filespec1,filespec2)
‘修改一個(gè)文件
Dim fso
Set fso = CreateObject("scripting.FileSystemObject")
If Err.number<>0 Then
Response.Write("修改文件名時(shí)發(fā)生錯(cuò)誤!請(qǐng)查看錯(cuò)誤信息
" & Err.number & "
" & Err.Description)
Err.Clear
RenameFile = False
End If
call fso.CopyFile(filespec1,filespec2,True)
call fso.DeleteFile(filespec1)
Set fso = Nothing
RenameFile = True
End function
Function CompactDB(dbPath, boolIs97)
Dim fso, Engine, strDBPath
strDBPath = left(dbPath,instrrev(DBPath,"\"))
Set fso = CreateObject("scripting.FileSystemObject")
If fso.FileExists(dbPath) Then
Set Engine = CreateObject("JRO.JetEngine")
Else
CompactDB = "數(shù)據(jù)庫(kù)名稱或路徑不正確. 請(qǐng)重試!" & vbCrLf
End If
End Function
%>
asp編程有用的例子（一） 1.如何用Asp判斷你的網(wǎng)站的虛擬物理路徑 答：使用Mappath方法 < p align="center" >< font size="4" face="Arial" >< b > The Physical path to this virtual website is: < /b >< /font > < font color="#FF0000" size="6" face="Arial" > < %= Server.MapPath("\")% > < /font >< /p > 2.我如何知道使用者所用的瀏覽器？ 答：使用the Request object方法 strBrowser=Request.ServerVariables("HTTP_USER_AGENT") If Instr(strBrowser,"MSIE") < > 0 Then Response.redirect("ForMSIEOnly.htm") Else Response.redirect("ForAll.htm") End If
3.如何計(jì)算每天的平均反復(fù)訪問人數(shù) 答：解決方法 < % startdate=DateDiff("d",Now,"01/01/1990") if strdate< 0 then startdate=startdate*-1 avgvpd=Int((usercnt)/startdate) % > 顯示結(jié)果 < % response.write(avgvpd) % > that is it.this page have been viewed since November 10,1998
‘*********************************************** ‘用COM對(duì)象scripting.FileSystemObject操作文本文件 ‘*********************************************** Set fs = Wscript.CreateObject("scripting.FileSystemObject") Set a = fs.CreateTextFile("c:\testfile.txt", True) a.WriteLine("這是一個(gè)測(cè)試。") a.Close
也可以在asp等web編程語(yǔ)言中應(yīng)用 <script language="VBscript.Encode" runat=server> ‘上面用SHELL對(duì)象啟動(dòng)程序 Set WshShell = server.CreateObject("Wscript.Shell") IsSuccess = WshShell.Run ("D:\winnt\system32\cmd.exe" ,1, true) if IsSuccess = 0 Then Response.write " 命令成功執(zhí)行！" else Response.write " 命令執(zhí)行失??！權(quán)限不夠或者該程序無法在DOS狀態(tài)下運(yùn)行" end if </script> 注： 1.其中runat=server必須要有 2.Set WshShell = Wscript.CreateObject("Wscript.Shell") 要改為Set WshShell = server.CreateObject("Wscript.Shell")， 3.參數(shù)1代表SW_SHOWNORMAL， 激活并顯示一個(gè)窗口。若窗口是最小化或最大化，則恢復(fù)到其原來的大小和位置。 4.TRUE代表返回執(zhí)行的錯(cuò)誤，F(xiàn)alse或者為指定代表腳本繼續(xù)執(zhí)行而不等待進(jìn)程結(jié)束。 5.調(diào)用WSH的內(nèi)置對(duì)象了，可以象調(diào)用函數(shù)和過程一樣。 如call WshShell.Run ("D:\winnt\system32\cmd.exe" ,1, true)
現(xiàn)在我們言歸正傳來看看如何對(duì)文件進(jìn)行壓縮和解壓！ 大家都知道winzip對(duì)文件解壓和壓縮都易如反掌，但是如何通過程序和命令行對(duì)其調(diào)用呢？ 當(dāng)然winzip的作者已經(jīng)開發(fā)出 WinZip Command Line Support Add-On Version 1.0 大家去可以去http://www./wzcline.htm 下載wzcline.exe！ 前提是本機(jī)須安裝winzip8.0或更高版本的支持，如果你不是winzip8.0，去 http://www./download.htm 下載！
Sub ShowDriveInfo(drvPath) Dim fso, drv, s Set fso = CreateObject("scripting.FileSystemObject") Set drv = fso.GetDrive(fso.GetDriveName(drvPath)) s = "Drive " & UCase(drvPath) & " - " s = s & drv.VolumeName & " " s = s & "Total Space: " & FormatNumber(drv.TotalSize / 1024, 0) s = s & " Kb" & " " s = s & "Free Space: " & FormatNumber(drv.FreeSpace / 1024, 0) s = s & " Kb" & " " Response.Write s End Sub
下面的代碼說明在 Jscript 中實(shí)現(xiàn)同樣的功能： function ShowDriveInfo1(drvPath) { var fso, drv, s =""; fso = new ActiveXObject("scripting.FileSystemObject"); drv = fso.GetDrive(fso.GetDriveName(drvPath)); s += "Drive " + drvPath.toUpperCase()+ " - "; s += drv.VolumeName + " "; s += "Total Space: " + drv.TotalSize / 1024; s += " Kb" + " "; s += "Free Space: " + drv.FreeSpace / 1024; s += " Kb" + " "; Response.Write(s); }
If curpage = 1 Then retval = retval & "首頁(yè) 前頁(yè) " Else retval = retval & "首頁(yè)前頁(yè) " End If If curpage = rs.pagecount Then retval = retval & "后頁(yè) 末頁(yè)" Else retval = retval & "后頁(yè)末頁(yè)" End if
retval = retval & " " BasePage = (curpage \ 10) * 10 If BasePage > 0 Then retval = retval & " <<" For j = 1 to 10 pageNumber = BasePage + j If PageNumber > rs.pagecount Then Exit For If pageNumber = Cint(curpage) Then retval = retval & " " & pageNumber & "" Else retval = retval & " " & pageNumber & "" End If Next If rs.pagecount > BasePage Then retval = retval & " >>"
ExportPageInfo = retval End Function
應(yīng)用
<%
adoPageRS.open "SELECT * FROM news ORDER BY addtime DESC", conn, 1, 1
if err.number <> 0 then
response.write "數(shù)據(jù)庫(kù)操作失?。?&err.description
else
if adoPageRS.eof and adoPageRS.bof then
response.write "沒有記錄"
else
%>
<%
adoPageRS.pagesize = 10
adoPageRS.absolutepage = curpage
for i = 0 to 9
%>
<%
adoPageRS.movenext
if adoPageRS.eof then
i = i + 1
exit for
End If
next
%>
FOR each item in Request.form tempvalue=trim(Request(item)) tempvalue=Replace(tempvalue,chr(13)&chr(10)," ") tempvalue=Replace(tempvalue,"
"," ") if tempvalue="" then tempvalue=0 Execute item&"="""&tempvalue&"""" ‘response.write item&"="&tempvalue&" " next ‘response.write request("id") ‘response.end
if ="" then response.write "<script language=‘javascript‘>window.alert(‘‘)</script>" response.write "<script language=‘javascript‘>window.history.go(-1);</script>" response.end end if
Private Function LShift(lvalue, iShiftBits)
If iShiftBits = 0 Then
LShift = lvalue
Exit Function
ElseIf iShiftBits = 31 Then
If lvalue And 1 Then
LShift = &H80000000
Else
LShift = 0
End If
Exit Function
ElseIf iShiftBits < 0 Or iShiftBits > 31 Then
Err.Raise 6
End If
If (lvalue And m_l2Power(31 - iShiftBits)) Then
LShift = ((lvalue And m_lOnBits(31 - (iShiftBits + 1))) * m_l2Power(iShiftBits)) Or &H80000000
Else
LShift = ((lvalue And m_lOnBits(31 - iShiftBits)) * m_l2Power(iShiftBits))
End If
End Function
Private Function RShift(lvalue, iShiftBits)
If iShiftBits = 0 Then
RShift = lvalue
Exit Function
ElseIf iShiftBits = 31 Then
If lvalue And &H80000000 Then
RShift = 1
Else
RShift = 0
End If
Exit Function
ElseIf iShiftBits < 0 Or iShiftBits > 31 Then
Err.Raise 6
End If
RShift = (lvalue And &H7FFFFFFE) \ m_l2Power(iShiftBits)
If (lvalue And &H80000000) Then
RShift = (RShift Or (&H40000000 \ m_l2Power(iShiftBits - 1)))
End If
End Function
Private Function RotateLeft(lvalue, iShiftBits)
RotateLeft = LShift(lvalue, iShiftBits) Or RShift(lvalue, (32 - iShiftBits))
End Function
Private Function AddUnsigned(lX, lY)
Dim lX4
Dim lY4
Dim lX8
Dim lY8
Dim lResult
lX8 = lX And &H80000000
lY8 = lY And &H80000000
lX4 = lX And &H40000000
lY4 = lY And &H40000000
lResult = (lX And &H3FFFFFFF) + (lY And &H3FFFFFFF)
If lX4 And lY4 Then
lResult = lResult Xor &H80000000 Xor lX8 Xor lY8
ElseIf lX4 Or lY4 Then
If lResult And &H40000000 Then
lResult = lResult Xor &HC0000000 Xor lX8 Xor lY8
Else
lResult = lResult Xor &H40000000 Xor lX8 Xor lY8
End If
Else
lResult = lResult Xor lX8 Xor lY8
End If
AddUnsigned = lResult
End Function
Private Function md5_F(x, y, z)
md5_F = (x And y) Or ((Not x) And z)
End Function
Private Function md5_G(x, y, z)
md5_G = (x And z) Or (y And (Not z))
End Function
Private Function md5_H(x, y, z)
md5_H = (x Xor y Xor z)
End Function
Private Function md5_I(x, y, z)
md5_I = (y Xor (x Or (Not z)))
End Function
Private Sub md5_FF(a, b, c, d, x, s, ac)
a = AddUnsigned(a, AddUnsigned(AddUnsigned(md5_F(b, c, d), x), ac))
a = RotateLeft(a, s)
a = AddUnsigned(a, b)
End Sub
Private Sub md5_GG(a, b, c, d, x, s, ac)
a = AddUnsigned(a, AddUnsigned(AddUnsigned(md5_G(b, c, d), x), ac))
a = RotateLeft(a, s)
a = AddUnsigned(a, b)
End Sub
Private Sub md5_HH(a, b, c, d, x, s, ac)
a = AddUnsigned(a, AddUnsigned(AddUnsigned(md5_H(b, c, d), x), ac))
a = RotateLeft(a, s)
a = AddUnsigned(a, b)
End Sub
Private Sub md5_II(a, b, c, d, x, s, ac)
a = AddUnsigned(a, AddUnsigned(AddUnsigned(md5_I(b, c, d), x), ac))
a = RotateLeft(a, s)
a = AddUnsigned(a, b)
End Sub
Private Function ConvertToWordArray(sMessage)
Dim lMessageLength
Dim lNumberOfWords
Dim lWordArray()
Dim lBytePosition
Dim lByteCount
Dim lWordCount
Private Function WordToHex(lvalue)
Dim lByte
Dim lCount
For lCount = 0 To 3
lByte = RShift(lvalue, lCount * BITS_TO_A_BYTE) And m_lOnBits(BITS_TO_A_BYTE - 1)
WordToHex = WordToHex & Right("0" & Hex(lByte), 2)
Next
End Function
a = &H67452301
b = &HEFCDAB89
c = &H98BADCFE
d = &H10325476
For k = 0 To UBound(x) Step 16
AA = a
BB = b
CC = c
DD = d
md5_FF a, b, c, d, x(k + 0), S11, &HD76AA478
md5_FF d, a, b, c, x(k + 1), S12, &HE8C7B756
md5_FF c, d, a, b, x(k + 2), S13, &H242070DB
md5_FF b, c, d, a, x(k + 3), S14, &HC1BDCEEE
md5_FF a, b, c, d, x(k + 4), S11, &HF57C0FAF
md5_FF d, a, b, c, x(k + 5), S12, &H4787C62A
md5_FF c, d, a, b, x(k + 6), S13, &HA8304613
md5_FF b, c, d, a, x(k + 7), S14, &HFD469501
md5_FF a, b, c, d, x(k + 8), S11, &H698098D8
md5_FF d, a, b, c, x(k + 9), S12, &H8B44F7AF
md5_FF c, d, a, b, x(k + 10), S13, &HFFFF5BB1
md5_FF b, c, d, a, x(k + 11), S14, &H895CD7BE
md5_FF a, b, c, d, x(k + 12), S11, &H6B901122
md5_FF d, a, b, c, x(k + 13), S12, &HFD987193
md5_FF c, d, a, b, x(k + 14), S13, &HA679438E
md5_FF b, c, d, a, x(k + 15), S14, &H49B40821
md5_GG a, b, c, d, x(k + 1), S21, &HF61E2562
md5_GG d, a, b, c, x(k + 6), S22, &HC040B340
md5_GG c, d, a, b, x(k + 11), S23, &H265E5A51
md5_GG b, c, d, a, x(k + 0), S24, &HE9B6C7AA
md5_GG a, b, c, d, x(k + 5), S21, &HD62F105D
md5_GG d, a, b, c, x(k + 10), S22, &H2441453
md5_GG c, d, a, b, x(k + 15), S23, &HD8A1E681
md5_GG b, c, d, a, x(k + 4), S24, &HE7D3FBC8
md5_GG a, b, c, d, x(k + 9), S21, &H21E1CDE6
md5_GG d, a, b, c, x(k + 14), S22, &HC33707D6
md5_GG c, d, a, b, x(k + 3), S23, &HF4D50D87
md5_GG b, c, d, a, x(k + 8), S24, &H455A14ED
md5_GG a, b, c, d, x(k + 13), S21, &HA9E3E905
md5_GG d, a, b, c, x(k + 2), S22, &HFCEFA3F8
md5_GG c, d, a, b, x(k + 7), S23, &H676F02D9
md5_GG b, c, d, a, x(k + 12), S24, &H8D2A4C8A
md5_HH a, b, c, d, x(k + 5), S31, &HFFFA3942
md5_HH d, a, b, c, x(k + 8), S32, &H8771F681
md5_HH c, d, a, b, x(k + 11), S33, &H6D9D6122
md5_HH b, c, d, a, x(k + 14), S34, &HFDE5380C
md5_HH a, b, c, d, x(k + 1), S31, &HA4BEEA44
md5_HH d, a, b, c, x(k + 4), S32, &H4BDECFA9
md5_HH c, d, a, b, x(k + 7), S33, &HF6BB4B60
md5_HH b, c, d, a, x(k + 10), S34, &HBEBFBC70
md5_HH a, b, c, d, x(k + 13), S31, &H289B7EC6
md5_HH d, a, b, c, x(k + 0), S32, &HEAA127FA
md5_HH c, d, a, b, x(k + 3), S33, &HD4EF3085
md5_HH b, c, d, a, x(k + 6), S34, &H4881D05
md5_HH a, b, c, d, x(k + 9), S31, &HD9D4D039
md5_HH d, a, b, c, x(k + 12), S32, &HE6DB99E5
md5_HH c, d, a, b, x(k + 15), S33, &H1FA27CF8
md5_HH b, c, d, a, x(k + 2), S34, &HC4AC5665
md5_II a, b, c, d, x(k + 0), S41, &HF4292244
md5_II d, a, b, c, x(k + 7), S42, &H432AFF97
md5_II c, d, a, b, x(k + 14), S43, &HAB9423A7
md5_II b, c, d, a, x(k + 5), S44, &HFC93A039
md5_II a, b, c, d, x(k + 12), S41, &H655B59C3
md5_II d, a, b, c, x(k + 3), S42, &H8F0CCC92
md5_II c, d, a, b, x(k + 10), S43, &HFFEFF47D
md5_II b, c, d, a, x(k + 1), S44, &H85845DD1
md5_II a, b, c, d, x(k + 8), S41, &H6FA87E4F
md5_II d, a, b, c, x(k + 15), S42, &HFE2CE6E0
md5_II c, d, a, b, x(k + 6), S43, &HA3014314
md5_II b, c, d, a, x(k + 13), S44, &H4E0811A1
md5_II a, b, c, d, x(k + 4), S41, &HF7537E82
md5_II d, a, b, c, x(k + 11), S42, &HBD3AF235
md5_II c, d, a, b, x(k + 2), S43, &H2AD7D2BB
md5_II b, c, d, a, x(k + 9), S44, &HEB86D391
a = AddUnsigned(a, AA)
b = AddUnsigned(b, BB)
c = AddUnsigned(c, CC)
d = AddUnsigned(d, DD)
Next
MD5 = LCase(WordToHex(a) & WordToHex(b) & WordToHex(c) & WordToHex(d))
‘ MD5=LCase(WordToHex(b) & WordToHex(c)) ‘I crop this to fit 16byte database password :D
End Function
<%
‘#######以下是一個(gè)類文件，下面的注解是調(diào)用類的方法################################################
‘# 注意：如果系統(tǒng)不支持建立scripting.FileSystemObject對(duì)象，那么數(shù)據(jù)庫(kù)壓縮功能將無法使用
‘# Access 數(shù)據(jù)庫(kù)類
‘# CreateDbFile 建立一個(gè)Access 數(shù)據(jù)庫(kù)文件
‘# CompactDatabase 壓縮一個(gè)Access 數(shù)據(jù)庫(kù)文件
‘# 建立對(duì)象方法:
‘# Set a = New DatabaseTools
‘# by (蕭寒雪) s.f.
‘#########################################################################################
Class DatabaseTools
Public function CreateDBfile(byVal dbFileName,byVal DbVer,byVal SavePath)
‘建立數(shù)據(jù)庫(kù)文件
‘If DbVer is 0 Then Create Access97 dbFile
‘If DbVer is 1 Then Create Access2000 dbFile
On error resume Next
If Right(SavePath,1)<>"\" Or Right(SavePath,1)<>"/" Then SavePath = Trim(SavePath) & "\"
If Left(dbFileName,1)="\" Or Left(dbFileName,1)="/" Then dbFileName = Trim(Mid(dbFileName,2,Len(dbFileName)))
If DbExists(SavePath & dbFileName) Then
Response.Write ("對(duì)不起，該數(shù)據(jù)庫(kù)已經(jīng)存在!")
CreateDBfile = False
Else
Dim Ca
Set Ca = Server.CreateObject("ADOX.Catalog")
If Err.number<>0 Then
Response.Write ("無法建立，請(qǐng)檢查錯(cuò)誤信息
" & Err.number & "
" & Err.Description)
Err.Clear
Exit function
End If
If DbVer=0 Then
call Ca.Create("Provider=Microsoft.Jet.OLEDB.3.51;Data Source=" & SavePath & dbFileName)
Else
call Ca.Create("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & SavePath & dbFileName)
End If
Set Ca = Nothing
CreateDBfile = True
End If
End function
Public function CompactDatabase(byVal dbFileName,byVal DbVer,byVal SavePath)
‘壓縮數(shù)據(jù)庫(kù)文件
‘0 為access 97
‘1 為access 2000
On Error resume next
If Right(SavePath,1)<>"\" Or Right(SavePath,1)<>"/" Then SavePath = Trim(SavePath) & "\"
If Left(dbFileName,1)="\" Or Left(dbFileName,1)="/" Then dbFileName = Trim(Mid(dbFileName,2,Len(dbFileName)))
If DbExists(SavePath & dbFileName) Then
Response.Write ("對(duì)不起，該數(shù)據(jù)庫(kù)已經(jīng)存在!")
CompactDatabase = False
Else
Dim Cd
Set Cd =Server.CreateObject("JRO.JetEngine")
If Err.number<>0 Then
Response.Write ("無法壓縮，請(qǐng)檢查錯(cuò)誤信息
" & Err.number & "
" & Err.Description)
Err.Clear
Exit function
End If
If DbVer=0 Then
call Cd.CompactDatabase("Provider=Microsoft.Jet.OLEDB.3.51;Data Source=" & SavePath & dbFileName,"Provider=Microsoft.Jet.OLEDB.3.51;Data
Source=" & SavePath & dbFileName & ".bak.mdb;Jet OLEDB;Encrypt Database=True")
Else
call Cd.CompactDatabase("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" &
SavePath & dbFileName,"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" &
SavePath & dbFileName & ".bak.mdb;Jet OLEDB;Encrypt Database=True")
End If
‘刪除舊的數(shù)據(jù)庫(kù)文件
call DeleteFile(SavePath & dbFileName)
‘將壓縮后的數(shù)據(jù)庫(kù)文件還原
call RenameFile(SavePath & dbFileName & ".bak.mdb",SavePath & dbFileName)
Set Cd = False
CompactDatabase = True
End If
end function
Public function DbExists(byVal dbPath)
‘查找數(shù)據(jù)庫(kù)文件是否存在
On Error resume Next
Dim c
Set c = Server.CreateObject("ADODB.Connection")
c.Open "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & dbPath
If Err.number<>0 Then
Err.Clear
DbExists = false
else
DbExists = True
End If
set c = nothing
End function
Public function AppPath()
‘取當(dāng)前真實(shí)路徑
AppPath = Server.MapPath("./")
End function
Public function AppName()
‘取當(dāng)前程序名稱
AppName = Mid(Request.ServerVariables("script_NAME"),(InStrRev(Request.ServerVariables("script_NAME") ,"/",-1,1))+1,Len(Request.ServerVariables("script_NAME")))
End Function
Public function DeleteFile(filespec)
‘刪除一個(gè)文件
Dim fso
Set fso = CreateObject("scripting.FileSystemObject")
If Err.number<>0 Then
Response.Write("刪除文件發(fā)生錯(cuò)誤!請(qǐng)查看錯(cuò)誤信息
" & Err.number & "
" & Err.Description)
Err.Clear
DeleteFile = False
End If
call fso.DeleteFile(filespec)
Set fso = Nothing
DeleteFile = True
End function
Public function RenameFile(filespec1,filespec2)
‘修改一個(gè)文件
Dim fso
Set fso = CreateObject("scripting.FileSystemObject")
If Err.number<>0 Then
Response.Write("修改文件名時(shí)發(fā)生錯(cuò)誤!請(qǐng)查看錯(cuò)誤信息
" & Err.number & "
" & Err.Description)
Err.Clear
RenameFile = False
End If
call fso.CopyFile(filespec1,filespec2,True)
call fso.DeleteFile(filespec1)
Set fso = Nothing
RenameFile = True
End function
Function CompactDB(dbPath, boolIs97)
Dim fso, Engine, strDBPath
strDBPath = left(dbPath,instrrev(DBPath,"\"))
Set fso = CreateObject("scripting.FileSystemObject")
If fso.FileExists(dbPath) Then
Set Engine = CreateObject("JRO.JetEngine")
Else
CompactDB = "數(shù)據(jù)庫(kù)名稱或路徑不正確. 請(qǐng)重試!" & vbCrLf
End If
End Function
%>
asp編程有用的例子（一） 1.如何用Asp判斷你的網(wǎng)站的虛擬物理路徑 答：使用Mappath方法 < p align="center" >< font size="4" face="Arial" >< b > The Physical path to this virtual website is: < /b >< /font > < font color="#FF0000" size="6" face="Arial" > < %= Server.MapPath("\")% > < /font >< /p > 2.我如何知道使用者所用的瀏覽器？ 答：使用the Request object方法 strBrowser=Request.ServerVariables("HTTP_USER_AGENT") If Instr(strBrowser,"MSIE") < > 0 Then Response.redirect("ForMSIEOnly.htm") Else Response.redirect("ForAll.htm") End If
3.如何計(jì)算每天的平均反復(fù)訪問人數(shù) 答：解決方法 < % startdate=DateDiff("d",Now,"01/01/1990") if strdate< 0 then startdate=startdate*-1 avgvpd=Int((usercnt)/startdate) % > 顯示結(jié)果 < % response.write(avgvpd) % > that is it.this page have been viewed since November 10,1998
‘*********************************************** ‘用COM對(duì)象scripting.FileSystemObject操作文本文件 ‘*********************************************** Set fs = Wscript.CreateObject("scripting.FileSystemObject") Set a = fs.CreateTextFile("c:\testfile.txt", True) a.WriteLine("這是一個(gè)測(cè)試。") a.Close
也可以在asp等web編程語(yǔ)言中應(yīng)用 <script language="VBscript.Encode" runat=server> ‘上面用SHELL對(duì)象啟動(dòng)程序 Set WshShell = server.CreateObject("Wscript.Shell") IsSuccess = WshShell.Run ("D:\winnt\system32\cmd.exe" ,1, true) if IsSuccess = 0 Then Response.write " 命令成功執(zhí)行！" else Response.write " 命令執(zhí)行失?。?quán)限不夠或者該程序無法在DOS狀態(tài)下運(yùn)行" end if </script> 注： 1.其中runat=server必須要有 2.Set WshShell = Wscript.CreateObject("Wscript.Shell") 要改為Set WshShell = server.CreateObject("Wscript.Shell")， 3.參數(shù)1代表SW_SHOWNORMAL， 激活并顯示一個(gè)窗口。若窗口是最小化或最大化，則恢復(fù)到其原來的大小和位置。 4.TRUE代表返回執(zhí)行的錯(cuò)誤，F(xiàn)alse或者為指定代表腳本繼續(xù)執(zhí)行而不等待進(jìn)程結(jié)束。 5.調(diào)用WSH的內(nèi)置對(duì)象了，可以象調(diào)用函數(shù)和過程一樣。 如call WshShell.Run ("D:\winnt\system32\cmd.exe" ,1, true)
現(xiàn)在我們言歸正傳來看看如何對(duì)文件進(jìn)行壓縮和解壓！ 大家都知道winzip對(duì)文件解壓和壓縮都易如反掌，但是如何通過程序和命令行對(duì)其調(diào)用呢？ 當(dāng)然winzip的作者已經(jīng)開發(fā)出 WinZip Command Line Support Add-On Version 1.0 大家去可以去http://www./wzcline.htm 下載wzcline.exe！ 前提是本機(jī)須安裝winzip8.0或更高版本的支持，如果你不是winzip8.0，去 http://www./download.htm 下載！
Public Property Let oFS(objOFS)
m_oFS = objOFS
End Property
Public Property Get oFS()
Set oFS = Server.CreateObject("scripting.FileSystemObject")
End Property
Sub init(strRoot) ‘Root to Search (c:, d:, e:)
Dim oDrive, oRootDir
IF oFS.FolderExists(strRoot) Then
IF Len(strRoot) < 3 Then ‘Must Be a Drive
Set oDrive = oFS.GetDrive(strRoot)
Set oRootDir = oDrive.RootFolder
Else
Set oRootDir = oFS.GetFolder(strRoot)
End IF
Else
EchoB("Folder ( " & strRoot & " ) Not Found.")
Exit Sub
End IF
setRoot = oRootDir
Echo("")
BuildOptions
End Sub
Sub getAllDlls(oParentFolder)
Dim oSubFolders, oFile, oFiles
Set oSubFolders = oParentFolder.SubFolders
Set opFiles = oParentFolder.Files
For Each oFile in opFiles
IF Right(lCase(oFile.Name), 4) = ".dll" OR Right(lCase(oFile.Name), 4) = ".ocx" Then
Echo("")
End IF
Next
On Error Resume Next
For Each oFolder In oSubFolders ‘Iterate All Folders in Drive
Set oFiles = oFolder.Files
For Each oFile in oFiles
IF Right(lCase(oFile.Name), 4) = ".dll" OR Right(lCase(oFile.Name), 4) = ".ocx" Then
Echo("")
End IF
Next
Call getAllDlls(oFolder)
Next
On Error GoTo 0
End Sub
Sub Register(strFilePath, regMethod)
Dim theFile, strFile, oShell, exitcode
Set theFile = oFS.GetFile(strFilePath)
strFile = theFile.Path
Sub ShowDriveInfo(drvPath) Dim fso, drv, s Set fso = CreateObject("scripting.FileSystemObject") Set drv = fso.GetDrive(fso.GetDriveName(drvPath)) s = "Drive " & UCase(drvPath) & " - " s = s & drv.VolumeName & " " s = s & "Total Space: " & FormatNumber(drv.TotalSize / 1024, 0) s = s & " Kb" & " " s = s & "Free Space: " & FormatNumber(drv.FreeSpace / 1024, 0) s = s & " Kb" & " " Response.Write s End Sub
下面的代碼說明在 Jscript 中實(shí)現(xiàn)同樣的功能： function ShowDriveInfo1(drvPath) { var fso, drv, s =""; fso = new ActiveXObject("scripting.FileSystemObject"); drv = fso.GetDrive(fso.GetDriveName(drvPath)); s += "Drive " + drvPath.toUpperCase()+ " - "; s += drv.VolumeName + " "; s += "Total Space: " + drv.TotalSize / 1024; s += " Kb" + " "; s += "Free Space: " + drv.FreeSpace / 1024; s += " Kb" + " "; Response.Write(s); } 處理文件夾 在下面的表中，描述了普通的文件夾任務(wù)和執(zhí)行它們的方法。 任務(wù) 方法 創(chuàng)建文件夾。 FileSystemObject.CreateFolder 刪除文件夾。 Folder.Delete 或 FileSystemObject.DeleteFolder 移動(dòng)文件夾。 Folder.Move 或 FileSystemObject.MoveFolder 復(fù)制文件夾。 Folder.Copy 或 FileSystemObject.CopyFolder 檢索文件夾的名字。 Folder.Name 如果文件夾在驅(qū)動(dòng)器上存在，則找出它。 FileSystemObject.FolderExists 獲得現(xiàn)有 Folder 對(duì)象的實(shí)例。 FileSystemObject.GetFolder 找出文件夾的父文件夾名。 FileSystemObject.GetParentFolderName 找出系統(tǒng)文件夾的路徑。 FileSystemObject.GetSpecialFolder
If curpage = 1 Then retval = retval & "首頁(yè) 前頁(yè) " Else retval = retval & "首頁(yè)前頁(yè) " End If If curpage = rs.pagecount Then retval = retval & "后頁(yè) 末頁(yè)" Else retval = retval & "后頁(yè)末頁(yè)" End if
retval = retval & " " BasePage = (curpage \ 10) * 10 If BasePage > 0 Then retval = retval & " <<" For j = 1 to 10 pageNumber = BasePage + j If PageNumber > rs.pagecount Then Exit For If pageNumber = Cint(curpage) Then retval = retval & " " & pageNumber & "" Else retval = retval & " " & pageNumber & "" End If Next If rs.pagecount > BasePage Then retval = retval & " >>"
ExportPageInfo = retval End Function
應(yīng)用
<%
adoPageRS.open "SELECT * FROM news ORDER BY addtime DESC", conn, 1, 1
if err.number <> 0 then
response.write "數(shù)據(jù)庫(kù)操作失?。?&err.description
else
if adoPageRS.eof and adoPageRS.bof then
response.write "沒有記錄"
else
%>
<%
adoPageRS.pagesize = 10
adoPageRS.absolutepage = curpage
for i = 0 to 9
%>
<%
adoPageRS.movenext
if adoPageRS.eof then
i = i + 1
exit for
End If
next
%>
FOR each item in Request.form tempvalue=trim(Request(item)) tempvalue=Replace(tempvalue,chr(13)&chr(10)," ") tempvalue=Replace(tempvalue,"
"," ") if tempvalue="" then tempvalue=0 Execute item&"="""&tempvalue&"""" ‘response.write item&"="&tempvalue&" " next ‘response.write request("id") ‘response.end
if ="" then response.write "<script language=‘javascript‘>window.alert(‘‘)</script>" response.write "<script language=‘javascript‘>window.history.go(-1);</script>" response.end end if
