下面給出4個(gè)函數(shù)，足夠你抵擋一切SQL注入漏洞！讀懂代碼，你就能融會(huì)貫通。

注意要對(duì)所有的request對(duì)象進(jìn)行過濾：包括 request.cookie, request.ServerVariables 等等容易被忽視的對(duì)象：

程序代碼

復(fù)制代碼 代碼如下:

function killn(byval s1) '過濾數(shù)值型參數(shù)
if not isnumeric(s1) then　
killn=0
else
if s1〈0 or s1〉2147483647 then　
killn=0
else
killn=clng(s1)
end if
end if
end function

function killc(byval s1) 過濾貨幣型參數(shù)
if not isnumeric(s1) then　
killc=0
else
killc=formatnumber(s1,2,-1,0,0)
end if
end function

function killw(byval s1) '過濾字符型參數(shù)
if len(s1)=0 then
killw=""
else
killw=trim(replace(s1,"'",""))
end if
end function

function killbad(byval s1) 過濾所有危險(xiǎn)字符，包括跨站腳本
If len(s1) = 0 then
killbad=""
else
killbad = trim(replace(replace(replace(replace(replace(replace(replace(replace(s1,Chr(10), "〈br〉"), Chr(34), """), "〉", ">"), "〈", "<"), "&", "&"),chr(39),"'"),chr(32)," "),chr(13),""))
end if
end function