<script language=JavaScript>
a="0.0|0.1|0.3|0.2.3|1.2.3"
function rep(str)
{var s=str.replace(/\./ig,"\\.");
var reg=eval("/\\|"+s+"\\|/ig");
return ("|"+a+"|").replace(reg,"|").replace(/^\|/ig,"").replace(/\|$/ig,"")
}
alert(rep("0.0"))
alert(rep("0.1"))
alert(rep("0.3"))
alert(rep("0.2.3"))
alert(rep("1.2.3"))
</script>
a="0.0|0.1|0.3|0.2.3|1.2.3"
function rep(str)
{var s=str.replace(/\./ig,"\\.");
var reg=eval("/\\|"+s+"\\|/ig");
return ("|"+a+"|").replace(reg,"|").replace(/^\|/ig,"").replace(/\|$/ig,"")
}
alert(rep("0.0"))
alert(rep("0.1"))
alert(rep("0.3"))
alert(rep("0.2.3"))
alert(rep("1.2.3"))
</script>
<!-- DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Strict//EN" -->
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<META http-equiv=Content-Type content="text/html; charset=gb2312">
<META NAME="Author" CONTENT="Seagle.K">
<SCRIPT LANGUAGE="JavaScript">
function remove(item)
{
item = item.replace(/(\.)/g, '\\$1');
var pattern = new RegExp("(" + item + "\\||\\|" + item + "$|"+item+")", "g");
return txt.value.replace(pattern, '');
}
</SCRIPT>
</HEAD>
<BODY>
source:
<INPUT TYPE="text" id="txt" value="0.0|0.1|0.3|0.2.3|1.2.3" size="50">
<BR>
deletion:
<SELECT id="sel">
<option value="0.0">0.0</option>
<option value="0.1">0.1</option>
<option value="0.3">0.3</option>
<option value="0.2.3">0.2.3</option>
<option value="1.2.3">1.2.3</option>
</SELECT>
<BR>
<INPUT TYPE="button" VALUE="remove" ONCLICK="res.value=remove(sel.value)">
<BR>
result:
<INPUT TYPE="text" id="res" value="" size="50" readonly>
</BODY>
</HTML>其实用字符串分隔为数组,剔除数组元素,再合并的方式更易于理解和操作