asp正则过滤重复字符串的代码

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asp下过滤重复字符串的代码，有时候我们需要过滤一些重复的字符串，下面的代码即可解决这个问题
比如 1223445677777778aabbcccccccccc 经过过滤之后就是12345678abc

<%
'过滤重复
Function norepeat(Str)
Dim RegEx
If IsNull(Str) Or Str="" Then Exit Function
Set RegEx=New RegExp
RegEx.Global = True
RegEx.IgnoreCase=True
RegEx.MultiLine = True
RegEx.pattern="(.)/1+"
str=regEx.replace(str,"$1")
Set RegEx=Nothing
Norepeat=str
End Function
'示例
s="1223445677777778aabbcccccccccc"
response.write Norepeat(s)
%>

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