刪除重復字符js代碼

　　刪除重復字符js代碼
>

　　<script type="text/vbscript">
        <!
            dim str
            str="您好歡迎來到"
            set regex = new regexp
            regexpattern = "(({}?){})"
            regexglobal = true
            regexignorecase = true
            set matches = regexexecute(str)   執行搜索
  for each match in matches      循環遍歷matches集合
    alert("重復的字符:" & matchsubmatches())
    alert("整個重復的字符:" & matchsubmatches())
  next

　　//>
        </script>

From:http://tw.wingwit.com/Article/program/net/201311/14474.html