常用ASP自定义函数集 (S.Sams)

答案：文章来源: 视点设计 8see.net 
http://blog.8see.net/
rem ---表单提示函数 Being-----------------------------
CODE Copy ...  
Function Check_submit(str,restr)
  if str="" then
  response.write "<script>"
  response.write "alert('"&restr&"');"
  response.write "history.go(-1)"
  response.write "</script>"
  response.end
  else
  Check_submit=str
  end if
End Function 


CODE Copy ...  
Function Alert_submit(str)
  response.write "<script>"
  response.write "alert('"&str&"');"
  'response.write "location.reload();"
  response.write "</script>"
End Function 


CODE Copy ...  
Function localhost_submit(str,urls)
  response.write "<script>"
  if str<>"" then
  response.write "alert('"&str&"');"
  end if
  response.write "location='"&urls&"';"
  response.write "</script>"
End Function 


rem ---生成自定义位随机数 Being-----------------------------
CODE Copy ...  
Function makerndid(byVal maxLen)
  Dim strNewPass
  Dim whatsNext, upper, lower, intCounter
  RANdomize
  For intCounter = 1 To maxLen
  whatsNext = int(2 * Rnd)
  If whatsNext = 0 Then
    upper = 80 
    lower = 70
  Else
    upper = 48
    lower = 39
  End If
  strNewPass = strNewPass & Chr(Int((upper - lower + 1) * Rnd + upper))
  Next
  makerndid = strNewPass
End Function 


rem ---生成四位随机数 Being-----------------------------
CODE Copy ...  
Function get_rand()
  dim num1
  dim rndnum
  Randomize
  Do While Len(rndnum)<4
  num1=CStr(Chr((57-48)*rnd+48))
  rndnum=rndnum&num1
  loop
  get_rand=rndnum
End Function 


rem ---判断数据是否整型 Being-----------------------------
CODE Copy ...  
Function IsInteger(para)
on error resume next
dim str
dim l,i
if isNUll(para) then 
isInteger=false
exit function
end if
str=cstr(para)
if trim(str)="" then
isInteger=false
exit function
end if
l=len(str)
for i=1 to l
if mid(str,i,1)>"9" or mid(str,i,1)<"0" then
isInteger=false 
exit function
end if
next
isInteger=true
if err.number<>0 then err.clear
End Function 


rem ---数据库链接函数 Being-----------------------------
CODE Copy ...  
Function OpenCONN
  Set conn = Server.CreateObject("ADODB.Connection")
  connstr="Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & Server.MapPath(DB_login)
conn.Open connstr
End Function 


rem ---中文字符转Uncode代码函数 Being-----------------------------
CODE Copy ...  
Function URLEncoding(vstrIn)
strReturn = ""
For i = 1 To Len(vstrIn)
ThisChr = Mid(vStrIn,i,1)
If Abs(Asc(ThisChr)) < &HFF Then
strReturn = strReturn & ThisChr
Else
innerCode = Asc(ThisChr)
If innerCode < 0 Then
innerCode = innerCode + &H10000
End If
Hight8 = (innerCode And &HFF00)\ &HFF
Low8 = innerCode And &HFF
strReturn = strReturn & "%" & Hex(Hight8) & "%" & Hex(Low8)
End If
Next
URLEncoding = strReturn
End Function 


rem ---Html过滤函数 Being-----------------------------Function Htmlout(str)
CODE Copy ...  
dim result
dim l
if isNULL(str) then 
Htmlout=""
exit function
end if
l=len(str)
result=""
  dim i
  for i = 1 to l
   select case mid(str,i,1)
   case "<"
   result=result+"&lt;"
   case ">"
   result=result+"&gt;"
    case chr(13)
      if session("admin_system")="" then
   result=result+"<br>"
      end if
   case chr(34)
   result=result+"&quot;"
   case "&"
   result=result+"&amp;"
case chr(32)   
   'result=result+"&nbsp;"
   if i+1<=l and i-1>0 then
   if mid(str,i+1,1)=chr(32) or mid(str,i+1,1)=chr(9) or mid(str,i-1,1)=chr(32) or mid(str,i-1,1)=chr(9) then   
   result=result+"&nbsp;"
   else
   result=result+" "
   end if
   else
   result=result+"&nbsp;"   
   end if
   case chr(9)
   result=result+" "
   case else
   result=result+mid(str,i,1)
end select
next 
Htmlout=result
End Function 


rem ---textarea显示用---
CODE Copy ...  
function htmlencode1(fString) 
if fString<>"" and not isnull(fString) then
fString = replace(fString, "&gt;", ">")
fString = replace(fString, "&lt;", "<")
fString = Replace(fString, "&nbsp;", chr(32))
fString = Replace(fString, "</p><p>", CHR(10) & CHR(10))
fString = Replace(fString, "<br>", CHR(10))
htmlencode1=fString
else
htmlencode1="" 
end if
end function 


rem ---页面显示用---
CODE Copy ...  
function htmlencode2(fString) 
if fString<>"" and not isnull(fString) then
fString = replace(fString, ">", "&gt;")
fString = replace(fString, "<", "&lt;")
fString = Replace(fString, chr(32), "&nbsp;")
fString = Replace(fString, CHR(10) & CHR(10), "</p><p>")
fString = Replace(fString, CHR(10), "<br>")
htmlencode2=fString
else
htmlencode2=""
end if
end function 


rem ---取出指定字符串前后的字符串方法---
CODE Copy ...  
function GetStrs(str1,CharFlag,Dflag)
dim tmpstr
if Dflag=0 then'取左
pos1=instr(str1,charFlag)
if pos1<=20 then
tmpstr=left(str1,pos1-1)
else
tmpstr=mid(str1,pos1-20,20)
end if
else '取右
pos1=instr(str1,charFlag)+len(charFlag)
if len(str1)-pos1<=20 then
tmpstr=right(str1,len(str1)-pos1)
else
tmpstr=mid(str1,pos1+1,20)
end if
end if
GetStrs=tmpstr
end function 


rem ---取出文件名---
CODE Copy ...  
function getfilename(str)
pos=instr(str,".")
if str<>"" then
str=mid(str,pos,len(str))
end if 
getfilename=str
end function 


rem ---取到浏览器版本转换字符串---
CODE Copy ...  
function browser() 
dim text 
text = Request.ServerVariables("HTTP_USER_AGENT")
if Instr(text,"MSIE 5.5")>0 then
browser="IE 5.5"
elseif Instr(text,"MSIE 6.0")>0 then
browser="IE 6.0"
elseif Instr(text,"MSIE 5.01")>0 then
browser="IE 5.01"
elseif Instr(text,"MSIE 5.0")>0 then
browser="IE 5.00"
elseif Instr(text,"MSIE 4.0")>0 then
browser="IE 4.01"
else
browser="未知"
end if
end function 


rem ---取到系统脚本转换字符串---
CODE Copy ...  
function system(text)
if Instr(text,"NT 5.1")>0 then
system=system+"Windows XP"
elseif Instr(text,"NT 5")>0 then
system=system+"Windows 2000"
elseif Instr(text,"NT 4")>0 then
system=system+"Windows NT4"
elseif Instr(text,"4.9")>0 then
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 

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