system=system+"Windows ME"
elseif Instr(text,"98")>0 then
system=system+"Windows 98"
elseif Instr(text,"95")>0 then
system=system+"Windows 95"
else
system=system+"未知"
end if
end function
rem ---=删除文件---
CODE Copy ...
function delfile(filepath)
imangepath=trim(filepath)
path=server.MapPath(imangepath)
SET fs=server.CreateObject("Scripting.FileSystemObject")
if FS.FileExists(path) then
FS.DeleteFile(path)
end if
set fs=nothing
end function
rem ---得到真实的客户端IP---
CODE Copy ...
Public Function GetClientIP()
dim uIpAddr
' 本函数参考webcn.Net/AspHouse 文献<取真实的客户IP>
uIpAddr = Request.ServerVariables("HTTP_X_FORWARDED_FOR")
If uIpAddr = "" Then uIpAddr = Request.ServerVariables("REMOTE_ADDR")
GetClientIP = uIpAddr
uIpAddr = ""
End function
数据库查询中的特殊字符的问题
在进行数据库的查询时，会经常遇到这样的情况：
例如想在一个用户数据库中查询他的用户名和他的密码，但恰好该用户使用的名字和密码中有特殊的字符，例如单引号，“|”号，双引号或者连字符“&”。
例如他的名字是1"test，密码是A|&900
这时当你执行以下的查询语句时，肯定会报错：
SQL = "SELECT * FROM SecurityLevel WHERE UID="" & UserID & """
SQL = SQL & " AND PWD="" & Password & """
因为你的SQL将会是这样：
SELECT * FROM SecurityLevel WHERE UID="1"test" AND PWD="A|&900"
在SQL中，"|"为分割字段用的，显然会出错了。现在提供下面的几个函数 专门用来处理这些头疼的东西：
Quoted from Unkown:
Function ReplaceStr (TextIn, ByVal SearchStr As String, _
ByVal Replacement As String, _
ByVal CompMode As Integer)
Dim WorkText As String, Pointer As Integer
If IsNull(TextIn) Then
ReplaceStr = Null
Else
WorkText = TextIn
Pointer = InStr(1, WorkText, SearchStr, CompMode)
Do While Pointer > 0
WorkText = Left(WorkText, Pointer - 1) & Replacement & _
Mid(WorkText, Pointer + Len(SearchStr))
Pointer = InStr(Pointer + Len(Replacement), WorkText, SearchStr, CompMode)
Loop
ReplaceStr = WorkText
End If
End Function
Function SQLFixup(TextIn)
SQLFixup = ReplaceStr(TextIn, """, """", 0)
End Function
Function JetSQLFixup(TextIn)
Dim Temp
Temp = ReplaceStr(TextIn, """, """", 0)
JetSQLFixup = ReplaceStr(Temp, "|", "" & chr(124) & "", 0)
End Function
Function FindFirstFixup(TextIn)
Dim Temp
Temp = ReplaceStr(TextIn, """, "" & chr(39) & "", 0)
FindFirstFixup = ReplaceStr(Temp, "|", "" & chr(124) & "", 0)
End Function
rem 借助RecordSet将二进制流转化成文本
Quoted from Unkown:
Function BinaryToString(biData,Size)
Const adLongVarChar = 201
Set RS = CreateObject("ADODB.Recordset")
RS.Fields.Append "mBinary", adLongVarChar, Size
RS.Open
RS.AddNew
RS("mBinary").AppendChunk(biData)
RS.Update
BinaryToString = RS("mBinary").Value
RS.Close
End Function
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