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发信人: nicq (NoName), 信区: Homepage
标题: asp代码精华(十一)
发信站: 荔园晨风BBS站 (Wed Apr 23 13:31:04 2003), 站内信件

ASP中一些很有用的自定义函数
''''''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
数值，，，将数值转换为二进制
function two(str)
i=""
do while str>1
if int((str/2))*2=str then
i=0&i
else
i=1&i
end if
str=int(str/2)
loop
if str=1 then
i=1&i
end if
two=i
end function

将二进制转换为10进制

function ten(str)
p=0
i=len(str)
for m= 1 to i
p=2^(i-m)*mid(str,m,1)+p
next
ten=p
end function

用发，，
a=100
response.write two(a)
输出100的二进制
response.write ten(two(a))
输出100

防止刷新的记数器
Function show(max)

If Request.cookies("count")="" Then
Set fso=Server.CreateObject("ｓcripting.FileSystemObject")
Set fp=fso.OpenTextFile(Server.MapPath("count.dat"))
countn=fp.Readline
countn=countn+1
Fp.close
Set fp=Nothing
set fp=fso.createtextfile(server.mappath("count.dat"))
fp.Writeline countn
set fp=nothing
set fso=nothing
Response.Cookies("count")=countn
End If
Set fso=Server.CreateObject("ｓcripting.FileSystemObject")
Set fp=fso.OpenTextFile(Server.MapPath("count.dat"))
s=fp.Readline
For n=(max-len(s)) to 1 step -1
Response.write "<img src=""0.gif"" border=0>"
Next
j=0
For i=(max-len(s)) to max-1
j=j+1
Response.Write "<img src='"& mid(s,j,1)&".gif' border=0>"
Next
Set fp=Nothing
Set fso=Nothing

End Function
'******************************
'||Function FormatDate(varDate)
'||Created by Cj, 2000/8/29
'||将传递进来的字符串转化成"YYYY-M-D"格式的字符串
'******************************
Function FormatDate(varDate)
If Not isDate(varDate) then
FormatDate = NULL
Exit Function
End if

FormatDate = Year(varDate) & "-" & Month(varDate) & "-" & Day(varDate)
End Function

function GetFullDate(varDate)
if Not isDate(varDate) then
GetFullDate = null
exit function
end if

dim minutes, seconds

minutes = Minute(varDate)
if(len(minutes)) = 1 then minutes = "0" & minutes
seconds = Second(varDate)
if(len(seconds)) = 1 then seconds = "0" & seconds
GetFullDate = FormatDate(varDate) & " " & Hour(varDate) & ":" & minutes & ":" &
seconds
end function

ip限制函数
'******************************
'Function CheckIp(cInput_Ip,cBound_Ip)
'Created by qqdao, qqdao@263.net 2001/11/28
'说明：首先需要根据;号循环，然后判断是否含有"-"，如果有则进行拆分处理，最后判断
是否在范围内
'参数： cInput_Ip,代检查的ip
' cBound_Ip,给定的范围格式为,单个ip,和范围ip，范围ip最后使用”-“分割，如果是“
*”则必须放到最后一位
' 每个范围后添加":ALLOW"表示允许登陆，添加":REFUSE"表示拒绝登陆。多个范围用”;“
隔开
' 例如192.168.1*.*:ALLOW;192.168.1.1:ALLOW;192.168.1.1-10:REFUSE"
'返回值: true/false
'更新：2001/12/05 支持ALLOW,REFUSE支持’*‘,不想对？支持，因为和*差不多
'******************************
function CheckIp(cInput_Ip,cBound_Ip)
dim cSingle_Ip,cTemp_IP,cStart_IP,cEnd_Ip
CheckIp = false
cSingle_Ip=split(cBound_Ip,";")

for i=0 to ubound(cSingle_Ip)
if Instr(cSingle_Ip(i),"REFUSE") <> 0 then '就是拒绝了
cTemp_IP = left(cSingle_Ip(i),instr(cSingle_Ip(i),":")-1)

if Instr(cTemp_IP,"*") <> 0 then '是宽范围
cStart_IP = left(cTemp_IP,instr(cTemp_IP,"*")-1)
if left(cInput_Ip,len(cStart_IP))=cStart_IP then
CheckIp = false
exit function
end if
end if

if Instr(cTemp_IP,"-") = 0 then
cStart_IP = cTemp_IP
cEnd_Ip = cTemp_IP
else
cStart_IP = left(cTemp_IP,instr(cTemp_IP,"-")-1)
cEnd_Ip = left(cStart_IP,InStrRev(cStart_IP,".")-1)+"."+mid(cTemp_IP,
instr(cTemp_IP,"-")+1)
end if

if Ip2Str(cInput_Ip)>=Ip2Str(cStart_IP) and Ip2Str(cInput_Ip)<=Ip2Str(cEnd_Ip)
then
CheckIp = false
exit function
end if

elseif Instr(cSingle_Ip(i),"ALLOW") <> 0 then '允许

cTemp_IP = left(cSingle_Ip(i),instr(cSingle_Ip(i),":")-1)

if Instr(cTemp_IP,"*") <> 0 then '是宽范围
cStart_IP = left(cTemp_IP,instr(cTemp_IP,"*")-1)
if left(cInput_Ip,len(cStart_IP))=cStart_IP then
CheckIp = true
end if
end if

if Instr(cTemp_IP,"-") = 0 then
cStart_IP = cTemp_IP
cEnd_Ip = cTemp_IP
else
cStart_IP = left(cTemp_IP,instr(cTemp_IP,"-")-1)
cEnd_Ip = left(cStart_IP,InStrRev(cStart_IP,".")-1)+"."+mid(cTemp_IP,
instr(cTemp_IP,"-")+1)
end if

if Ip2Str(cInput_Ip)>=Ip2Str(cStart_IP) and Ip2Str(cInput_Ip)<=Ip2Str(cEnd_Ip)
then
CheckIp =true
else
CheckIp =false
end if
end if
next

end function

'******************************
'Function Ip2Str(cIp)
'Created by qqdao, qqdao@263.net 2001/11/28
'参考动网ip算法
'参数：cIp ip地址
'返回值: 转换后数值
'******************************
function Ip2Str(cIp)
Dim str1,str2,str3,str4
Dim cIp_Temp
if cIp="127.0.0.1" then cIp="192.168.0.1"
str1=left(cIp,instr(cIp,".")-1)
cIp_Temp=mid(cIp,instr(cIp,".")+1)
str2=left(cIp_Temp,instr(cIp_Temp,".")-1)
cIp_Temp=mid(cIp_Temp,instr(cIp_Temp,".")+1)
str3=left(cIp_Temp,instr(cIp_Temp,".")-1)
str4=mid(cIp_Temp,instr(cIp_Temp,".")+1)

if isNumeric(str1)=0 or isNumeric(str2)=0 or isNumeric(str3)=0 or
isNumeric(str4)=0 then

else
Ip2Str=cint(str1)*256*256*256+cint(str2)*256*256+cint(str3)*256+cint(str4)-1
end if

end function

'代码调用演示
if CheckIp("192.168.1.1","192.168.1.*:REFUSE") then
response.write "登陆成功"
else
response.write "您的ip不被允许"
end if

cinput_ip就是要检查的ip，也就是Request.ServerVariables("REMOTE_ADDR")
cbound_ip是范围，可以存到库里，范围的写法，我已详细说明了。
简单的检查输入email是否合法程序

function chkEmail(email)
on error resume next
dim i,l,pos1,pos2
chkEmail=true
if isnull(email) then chkEmail=false:exit function
pos1= instr(email,"@")
pos2=instrRev(email,".")
if not(pos1>0) or not (pos2>0) or pos1>pos2 then
chkEmail=false
end if
if err.number<>0 then err.clear
end function

--
(S-Term)Sorry, i'm not here

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