正则表达式实例：截字符串及去除HTML标记_正则表达式

正则表达式实例：截字符串及去除HTML标记

2020-07-05 15:03正则表达式教程网正则表达式

本文主要讲解使用正则表达式截取字符串及去除HTML标记的两种实例方法，有需要的可以参考下

<%

'**************************************************

'函数名：gotTopic

'作用：截字符串，汉字一个算两个字符，英文算一个字符

'参数：str ----原字符串

' strlen ----截取长度

'返回值：截取后的字符串

'**************************************************

function gotTopic(str,strlen)

if str="" then

gotTopic=""

exit function

end if

dim l,t,c, i

str=replace(replace(replace(replace(str," "," "),""",chr(34)),">",">"),"<","<")

str=replace(str,"?","")

l=len(str)

t=0

for i=1 to l

c=Abs(Asc(Mid(str,i,1)))

if c>255 then

t=t+2

else

t=t+1

end if

if t>=strlen then

gotTopic=left(str,i) & "…"

exit for

else

gotTopic=str

end if

next

gotTopic=replace(replace(replace(replace(gotTopic," "," "),chr(34),"""),">",">"),"<","<")

end function

'=========================================================

'函数：RemoveHTML(strHTML)

'功能：去除HTML标记

'参数：strHTML --要去除HTML标记的字符串

'=========================================================

Function RemoveHTML(strHTML)

Dim objRegExp, Match, Matches

Set objRegExp = New Regexp

objRegExp.IgnoreCase = True

objRegExp.Global = True

'取闭合的<>

objRegExp.Pattern = "<.+?>"

'进行匹配

Set Matches = objRegExp.Execute(strHTML)

' 遍历匹配集合，并替换掉匹配的项目

For Each Match in Matches

strHtml=Replace(strHTML,Match.Value,"")

Next

RemoveHTML=strHTML

Set objRegExp = Nothing

set Matches=nothing

End Function

%>